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klein panic
2025-04-01 09:11:11 -04:00
parent 0cfe4ddadf
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venv/
backups/

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GNU GENERAL PUBLIC LICENSE GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007 Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed. of this license document, but changing it is not allowed.
@@ -645,7 +645,7 @@ the "copyright" line and a pointer to where the full notice is found.
GNU General Public License for more details. GNU General Public License for more details.
You should have received a copy of the GNU General Public License You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail. Also add information on how to contact you by electronic and paper mail.
@@ -664,11 +664,11 @@ might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school, You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary. if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>. <https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>. <https://www.gnu.org/licenses/why-not-lgpl.html>.

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# Chess Application
A Python-based chess game that supports both a Command-Line Interface (CLI) and a Graphical User Interface (GUI). This project is designed with a modular structure where the core game logic is separated from the UI, making it easier to maintain and extend.
## Project Structure
my_chess/ ├── install.sh # Installation script to set up dependencies and create a virtual environment ├── main.py # Entry point that selects between CLI and GUI modes based on command-line arguments └── src/ # Contains the source code for the application ├── init.py # Marks the directory as a Python package ├── game.py # Core chess logic (game state, moves, board management) ├── cli.py # CLI mode implementation for interacting via the terminal └── gui.py # GUI mode implementation using Tkinter
markdown
Copy
## Features
- **Modular Design:** Separates game logic from the user interface.
- **Dual Modes:** Choose between CLI mode and a Tkinter-based GUI mode.
- **Automated Setup:** `install.sh` checks for required dependencies and sets up a dedicated Python virtual environment.
- **System-Wide Installation:** Option to install a binary to `/usr/local/bin/chess` for easy access.
## Requirements
- **Operating System:** Linux (tested on Ubuntu/Debian)
- **Python Version:** Python 3.6 or higher
- **Dependencies:**
- Python's built-in `venv` module
- Tkinter (typically included with Python installations on Linux)
- **Privileges:** Sudo privileges for installing system packages via `apt-get`
## Installation
1. **Clone the Repository:**
```bash
git clone https://github.com/yourusername/my_chess.git
cd my_chess
```
Run the Installation Script:
```bash
./install.sh
```
The script will:
Check if required dependencies are installed (and prompt to install if not).
Create the virtual environment at /lib/python-venvs/chess.
Set up the necessary directories and permissions.
Activate the Virtual Environment (if needed):
```bash
source /lib/python-venvs/chess/bin/activate
```
Usage
Running in CLI Mode
To start the chess application in command-line mode:
```bash
python main.py
```
Follow the on-screen instructions to make moves and interact with the game.
Running in GUI Mode
To start the chess application with the graphical interface:
```bash
python main.py --gui
```
A Tkinter window will open, providing buttons and text displays to interact with the chess game.
Contributing
Contributions are welcome! If you encounter any issues or have suggestions for improvements:
Fork the repository
Create a feature branch
Commit your changes and open a pull request

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#!/bin/bash
source venv/bin/activate

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import curses
import chess
import chess.engine
import os
import random
# Initialize Stockfish engine
stockfish_path = "/usr/games/stockfish"
engine = chess.engine.SimpleEngine.popen_uci(stockfish_path)
# Define ASCII/Nerd Font pieces
PIECE_SYMBOLS = {
'P': '', 'N': '', 'B': '', 'R': '', 'Q': '', 'K': '',
'p': '', 'n': '', 'b': '', 'r': '', 'q': '', 'k': ''
}
def draw_board(stdscr, board, cell_width, cell_height, start_y, start_x, selected_square=None, move_history=[], legal_moves=[], player_color=None):
stdscr.clear()
max_y, max_x = stdscr.getmaxyx()
# Draw the move history
move_history_y = 2
stdscr.addstr(0, 0, "Move History:")
for index, move in enumerate(move_history[-(max_y // 2 - 2):]): # Display limited history
stdscr.addstr(move_history_y + index, 0, move)
# Draw the chessboard oriented towards the player
for board_y in range(8):
actual_row = board_y if player_color == chess.BLACK else 7 - board_y # Orient the row correctly based on player color
for board_x in range(8):
actual_col = board_x if player_color == chess.WHITE else 7 - board_x # Orient the column correctly
piece = board.piece_at(chess.square(actual_col, actual_row))
display_piece = PIECE_SYMBOLS[piece.symbol()] if piece else ' '
# Determine square color
square_color = curses.color_pair(1) if (actual_row + actual_col) % 2 == 0 else curses.color_pair(2)
is_selected = (selected_square == chess.square(actual_col, actual_row))
is_legal_move = chess.square(actual_col, actual_row) in legal_moves
if is_selected:
square_color = curses.color_pair(3) # Highlight selected square
elif is_legal_move:
square_color = curses.color_pair(4) # Highlight legal move square
stdscr.attron(square_color)
# Ensure that the piece is drawn centered in the cell
for line in range(cell_height):
if line == cell_height // 2: # Only draw the piece on the middle line
cell_content = display_piece.center(cell_width)
else:
cell_content = ' ' * cell_width # Clear remaining lines in the cell
try:
stdscr.addstr(start_y + board_y * cell_height + line, start_x + board_x * cell_width, cell_content)
except curses.error:
pass
stdscr.attroff(square_color)
stdscr.refresh()
def get_square_from_position(mouse_x, mouse_y, cell_width, cell_height, start_x, start_y, player_color):
row = (mouse_y - start_y) // cell_height
col = (mouse_x - start_x) // cell_width
if player_color == chess.BLACK:
col = 7 - col # Reverse column for black orientation
if player_color == chess.WHITE:
row = 7 - row # Reverse row for white orientation
if 0 <= row < 8 and 0 <= col < 8:
return chess.square(col, row)
return None
def main(stdscr):
curses.curs_set(0)
stdscr.clear()
curses.mousemask(curses.ALL_MOUSE_EVENTS | curses.REPORT_MOUSE_POSITION)
curses.start_color()
curses.init_pair(1, curses.COLOR_WHITE, 94) # Light brown background
curses.init_pair(2, curses.COLOR_BLACK, 58) # Dark brown background
curses.init_pair(3, curses.COLOR_BLACK, curses.COLOR_WHITE) # Highlight selected square in grey
curses.init_pair(4, curses.COLOR_GREEN, curses.COLOR_WHITE) # Highlight legal move square
# Get difficulty input
stdscr.addstr(0, 0, "Enter difficulty level (1-20): ")
stdscr.refresh()
while True:
try:
difficulty_input = stdscr.getstr().decode().strip()
difficulty = int(difficulty_input)
if 1 <= difficulty <= 20:
break
else:
stdscr.addstr(1, 0, "Invalid input. Please enter a number between 1 and 20.")
except ValueError:
stdscr.addstr(1, 0, "Invalid input. Please enter a valid integer.")
stdscr.refresh()
stdscr.getch()
stdscr.clear()
stdscr.addstr(0, 0, "Enter difficulty level (1-20): ")
# Randomly assign player color
player_color = chess.WHITE if random.choice([True, False]) else chess.BLACK
player_side = "White" if player_color == chess.WHITE else "Black"
stdscr.clear()
stdscr.addstr(0, 0, f"You are playing as: {player_side}")
stdscr.refresh()
stdscr.getch()
board = chess.Board()
move_history = []
undo_stack = []
redo_stack = []
cell_width = 5 # Adjusted size for larger icons
cell_height = 3
selected_square = None
piece_selected = False
moving_mode = False
legal_moves = []
original_square = None
while True:
rows, cols = stdscr.getmaxyx()
cell_width = max(5, min(6, (cols - 20) // 16)) # Ensure room for the move history
cell_height = 3
start_y = (rows - cell_height * 8) // 2
start_x = 20 # Start drawing the board from column 20 to make space for move history
draw_board(stdscr, board, cell_width, cell_height, start_y, start_x, selected_square, move_history, legal_moves, player_color)
if board.is_game_over():
stdscr.addstr(rows - 1, 0, "Game Over! Press any key to exit.")
stdscr.getch()
break
player_turn = board.turn == player_color
while player_turn:
try:
key = stdscr.getch()
if key == ord('q'):
engine.quit()
return
if key == ord('u'): # Undo both your move and the computer's move
if len(board.move_stack) > 1:
move1 = board.pop()
move2 = board.pop()
undo_stack.append((move1, move2))
redo_stack.clear() # Clear redo stack as we made a new undo
move_history.pop()
move_history.pop()
draw_board(stdscr, board, cell_width, cell_height, start_y, start_x, selected_square, move_history, legal_moves, player_color)
break
if key == ord('r'): # Redo both your move and the computer's move
if len(undo_stack) > 0:
move1, move2 = undo_stack.pop()
board.push(move2) # Push computer's move first
board.push(move1) # Push your move
redo_stack.append((move1, move2))
move_history.append(f"{'White' if player_color == chess.WHITE else 'Black'}: {move1}")
move_history.append(f"{'Black' if player_color == chess.WHITE else 'White'}: {move2}")
draw_board(stdscr, board, cell_width, cell_height, start_y, start_x, selected_square, move_history, legal_moves, player_color)
break
if key == curses.KEY_MOUSE:
_, mouse_x, mouse_y, _, button_state = curses.getmouse()
if button_state & curses.BUTTON1_CLICKED:
square = get_square_from_position(mouse_x, mouse_y, cell_width, cell_height, start_x, start_y, player_color)
if square is not None:
if not piece_selected and board.piece_at(square) and board.piece_at(square).color == player_color:
selected_square = square
original_square = selected_square
piece_selected = True
moving_mode = False
legal_moves = [move.to_square for move in board.legal_moves if move.from_square == selected_square]
draw_board(stdscr, board, cell_width, cell_height, start_y, start_x, selected_square, move_history, legal_moves, player_color)
elif piece_selected and selected_square != square:
move = chess.Move(selected_square, square)
if move in board.legal_moves:
board.push(move)
move_history.append(f"{player_side}: {move}")
selected_square = None
piece_selected = False
redo_stack.clear() # Clear redo stack when a new move is made
player_turn = False
break
selected_square = None
piece_selected = False
elif piece_selected:
if key in [curses.KEY_UP, curses.KEY_DOWN, curses.KEY_LEFT, curses.KEY_RIGHT]:
rank = chess.square_rank(selected_square)
file = chess.square_file(selected_square)
if key == curses.KEY_UP:
rank += 1 if player_color == chess.WHITE else -1
elif key == curses.KEY_DOWN:
rank -= 1 if player_color == chess.WHITE else 1
elif key == curses.KEY_LEFT:
file -= 1 if player_color == chess.WHITE else -1
elif key == curses.KEY_RIGHT:
file += 1 if player_color == chess.WHITE else -1
if 0 <= rank < 8 and 0 <= file < 8:
selected_square = chess.square(file, rank)
draw_board(stdscr, board, cell_width, cell_height, start_y, start_x, selected_square, move_history, legal_moves, player_color)
elif key == ord('\n'):
if not moving_mode:
moving_mode = True
legal_moves = [move.to_square for move in board.legal_moves if move.from_square == selected_square]
original_square = selected_square
draw_board(stdscr, board, cell_width, cell_height, start_y, start_x, selected_square, move_history, legal_moves, player_color)
else:
if selected_square != original_square:
move = chess.Move(original_square, selected_square)
if move in board.legal_moves:
board.push(move)
move_history.append(f"{player_side}: {move}")
selected_square = None
piece_selected = False
moving_mode = False
redo_stack.clear() # Clear the redo stack when a new move is made
player_turn = False
break
selected_square = original_square
moving_mode = False
except curses.error:
pass
if not player_turn:
result = engine.play(board, chess.engine.Limit(time=1.0 + (difficulty - 1) * 0.1))
board.push(result.move)
move_history.append(f"{'White' if not player_color else 'Black'}: {result.move}")
undo_stack.clear() # Clear undo stack after computer move
engine.quit()
if __name__ == "__main__":
curses.wrapper(main)

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<#
.Synopsis
Activate a Python virtual environment for the current PowerShell session.
.Description
Pushes the python executable for a virtual environment to the front of the
$Env:PATH environment variable and sets the prompt to signify that you are
in a Python virtual environment. Makes use of the command line switches as
well as the `pyvenv.cfg` file values present in the virtual environment.
.Parameter VenvDir
Path to the directory that contains the virtual environment to activate. The
default value for this is the parent of the directory that the Activate.ps1
script is located within.
.Parameter Prompt
The prompt prefix to display when this virtual environment is activated. By
default, this prompt is the name of the virtual environment folder (VenvDir)
surrounded by parentheses and followed by a single space (ie. '(.venv) ').
.Example
Activate.ps1
Activates the Python virtual environment that contains the Activate.ps1 script.
.Example
Activate.ps1 -Verbose
Activates the Python virtual environment that contains the Activate.ps1 script,
and shows extra information about the activation as it executes.
.Example
Activate.ps1 -VenvDir C:\Users\MyUser\Common\.venv
Activates the Python virtual environment located in the specified location.
.Example
Activate.ps1 -Prompt "MyPython"
Activates the Python virtual environment that contains the Activate.ps1 script,
and prefixes the current prompt with the specified string (surrounded in
parentheses) while the virtual environment is active.
.Notes
On Windows, it may be required to enable this Activate.ps1 script by setting the
execution policy for the user. You can do this by issuing the following PowerShell
command:
PS C:\> Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser
For more information on Execution Policies:
https://go.microsoft.com/fwlink/?LinkID=135170
#>
Param(
[Parameter(Mandatory = $false)]
[String]
$VenvDir,
[Parameter(Mandatory = $false)]
[String]
$Prompt
)
<# Function declarations --------------------------------------------------- #>
<#
.Synopsis
Remove all shell session elements added by the Activate script, including the
addition of the virtual environment's Python executable from the beginning of
the PATH variable.
.Parameter NonDestructive
If present, do not remove this function from the global namespace for the
session.
#>
function global:deactivate ([switch]$NonDestructive) {
# Revert to original values
# The prior prompt:
if (Test-Path -Path Function:_OLD_VIRTUAL_PROMPT) {
Copy-Item -Path Function:_OLD_VIRTUAL_PROMPT -Destination Function:prompt
Remove-Item -Path Function:_OLD_VIRTUAL_PROMPT
}
# The prior PYTHONHOME:
if (Test-Path -Path Env:_OLD_VIRTUAL_PYTHONHOME) {
Copy-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME -Destination Env:PYTHONHOME
Remove-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME
}
# The prior PATH:
if (Test-Path -Path Env:_OLD_VIRTUAL_PATH) {
Copy-Item -Path Env:_OLD_VIRTUAL_PATH -Destination Env:PATH
Remove-Item -Path Env:_OLD_VIRTUAL_PATH
}
# Just remove the VIRTUAL_ENV altogether:
if (Test-Path -Path Env:VIRTUAL_ENV) {
Remove-Item -Path env:VIRTUAL_ENV
}
# Just remove VIRTUAL_ENV_PROMPT altogether.
if (Test-Path -Path Env:VIRTUAL_ENV_PROMPT) {
Remove-Item -Path env:VIRTUAL_ENV_PROMPT
}
# Just remove the _PYTHON_VENV_PROMPT_PREFIX altogether:
if (Get-Variable -Name "_PYTHON_VENV_PROMPT_PREFIX" -ErrorAction SilentlyContinue) {
Remove-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Scope Global -Force
}
# Leave deactivate function in the global namespace if requested:
if (-not $NonDestructive) {
Remove-Item -Path function:deactivate
}
}
<#
.Description
Get-PyVenvConfig parses the values from the pyvenv.cfg file located in the
given folder, and returns them in a map.
For each line in the pyvenv.cfg file, if that line can be parsed into exactly
two strings separated by `=` (with any amount of whitespace surrounding the =)
then it is considered a `key = value` line. The left hand string is the key,
the right hand is the value.
If the value starts with a `'` or a `"` then the first and last character is
stripped from the value before being captured.
.Parameter ConfigDir
Path to the directory that contains the `pyvenv.cfg` file.
#>
function Get-PyVenvConfig(
[String]
$ConfigDir
) {
Write-Verbose "Given ConfigDir=$ConfigDir, obtain values in pyvenv.cfg"
# Ensure the file exists, and issue a warning if it doesn't (but still allow the function to continue).
$pyvenvConfigPath = Join-Path -Resolve -Path $ConfigDir -ChildPath 'pyvenv.cfg' -ErrorAction Continue
# An empty map will be returned if no config file is found.
$pyvenvConfig = @{ }
if ($pyvenvConfigPath) {
Write-Verbose "File exists, parse `key = value` lines"
$pyvenvConfigContent = Get-Content -Path $pyvenvConfigPath
$pyvenvConfigContent | ForEach-Object {
$keyval = $PSItem -split "\s*=\s*", 2
if ($keyval[0] -and $keyval[1]) {
$val = $keyval[1]
# Remove extraneous quotations around a string value.
if ("'""".Contains($val.Substring(0, 1))) {
$val = $val.Substring(1, $val.Length - 2)
}
$pyvenvConfig[$keyval[0]] = $val
Write-Verbose "Adding Key: '$($keyval[0])'='$val'"
}
}
}
return $pyvenvConfig
}
<# Begin Activate script --------------------------------------------------- #>
# Determine the containing directory of this script
$VenvExecPath = Split-Path -Parent $MyInvocation.MyCommand.Definition
$VenvExecDir = Get-Item -Path $VenvExecPath
Write-Verbose "Activation script is located in path: '$VenvExecPath'"
Write-Verbose "VenvExecDir Fullname: '$($VenvExecDir.FullName)"
Write-Verbose "VenvExecDir Name: '$($VenvExecDir.Name)"
# Set values required in priority: CmdLine, ConfigFile, Default
# First, get the location of the virtual environment, it might not be
# VenvExecDir if specified on the command line.
if ($VenvDir) {
Write-Verbose "VenvDir given as parameter, using '$VenvDir' to determine values"
}
else {
Write-Verbose "VenvDir not given as a parameter, using parent directory name as VenvDir."
$VenvDir = $VenvExecDir.Parent.FullName.TrimEnd("\\/")
Write-Verbose "VenvDir=$VenvDir"
}
# Next, read the `pyvenv.cfg` file to determine any required value such
# as `prompt`.
$pyvenvCfg = Get-PyVenvConfig -ConfigDir $VenvDir
# Next, set the prompt from the command line, or the config file, or
# just use the name of the virtual environment folder.
if ($Prompt) {
Write-Verbose "Prompt specified as argument, using '$Prompt'"
}
else {
Write-Verbose "Prompt not specified as argument to script, checking pyvenv.cfg value"
if ($pyvenvCfg -and $pyvenvCfg['prompt']) {
Write-Verbose " Setting based on value in pyvenv.cfg='$($pyvenvCfg['prompt'])'"
$Prompt = $pyvenvCfg['prompt'];
}
else {
Write-Verbose " Setting prompt based on parent's directory's name. (Is the directory name passed to venv module when creating the virtual environment)"
Write-Verbose " Got leaf-name of $VenvDir='$(Split-Path -Path $venvDir -Leaf)'"
$Prompt = Split-Path -Path $venvDir -Leaf
}
}
Write-Verbose "Prompt = '$Prompt'"
Write-Verbose "VenvDir='$VenvDir'"
# Deactivate any currently active virtual environment, but leave the
# deactivate function in place.
deactivate -nondestructive
# Now set the environment variable VIRTUAL_ENV, used by many tools to determine
# that there is an activated venv.
$env:VIRTUAL_ENV = $VenvDir
if (-not $Env:VIRTUAL_ENV_DISABLE_PROMPT) {
Write-Verbose "Setting prompt to '$Prompt'"
# Set the prompt to include the env name
# Make sure _OLD_VIRTUAL_PROMPT is global
function global:_OLD_VIRTUAL_PROMPT { "" }
Copy-Item -Path function:prompt -Destination function:_OLD_VIRTUAL_PROMPT
New-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Description "Python virtual environment prompt prefix" -Scope Global -Option ReadOnly -Visibility Public -Value $Prompt
function global:prompt {
Write-Host -NoNewline -ForegroundColor Green "($_PYTHON_VENV_PROMPT_PREFIX) "
_OLD_VIRTUAL_PROMPT
}
$env:VIRTUAL_ENV_PROMPT = $Prompt
}
# Clear PYTHONHOME
if (Test-Path -Path Env:PYTHONHOME) {
Copy-Item -Path Env:PYTHONHOME -Destination Env:_OLD_VIRTUAL_PYTHONHOME
Remove-Item -Path Env:PYTHONHOME
}
# Add the venv to the PATH
Copy-Item -Path Env:PATH -Destination Env:_OLD_VIRTUAL_PATH
$Env:PATH = "$VenvExecDir$([System.IO.Path]::PathSeparator)$Env:PATH"

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# This file must be used with "source bin/activate" *from bash*
# you cannot run it directly
deactivate () {
# reset old environment variables
if [ -n "${_OLD_VIRTUAL_PATH:-}" ] ; then
PATH="${_OLD_VIRTUAL_PATH:-}"
export PATH
unset _OLD_VIRTUAL_PATH
fi
if [ -n "${_OLD_VIRTUAL_PYTHONHOME:-}" ] ; then
PYTHONHOME="${_OLD_VIRTUAL_PYTHONHOME:-}"
export PYTHONHOME
unset _OLD_VIRTUAL_PYTHONHOME
fi
# This should detect bash and zsh, which have a hash command that must
# be called to get it to forget past commands. Without forgetting
# past commands the $PATH changes we made may not be respected
if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then
hash -r 2> /dev/null
fi
if [ -n "${_OLD_VIRTUAL_PS1:-}" ] ; then
PS1="${_OLD_VIRTUAL_PS1:-}"
export PS1
unset _OLD_VIRTUAL_PS1
fi
unset VIRTUAL_ENV
unset VIRTUAL_ENV_PROMPT
if [ ! "${1:-}" = "nondestructive" ] ; then
# Self destruct!
unset -f deactivate
fi
}
# unset irrelevant variables
deactivate nondestructive
VIRTUAL_ENV="/home/klein/codeWS/Python3/chess/venv"
export VIRTUAL_ENV
_OLD_VIRTUAL_PATH="$PATH"
PATH="$VIRTUAL_ENV/bin:$PATH"
export PATH
# unset PYTHONHOME if set
# this will fail if PYTHONHOME is set to the empty string (which is bad anyway)
# could use `if (set -u; : $PYTHONHOME) ;` in bash
if [ -n "${PYTHONHOME:-}" ] ; then
_OLD_VIRTUAL_PYTHONHOME="${PYTHONHOME:-}"
unset PYTHONHOME
fi
if [ -z "${VIRTUAL_ENV_DISABLE_PROMPT:-}" ] ; then
_OLD_VIRTUAL_PS1="${PS1:-}"
PS1="(venv) ${PS1:-}"
export PS1
VIRTUAL_ENV_PROMPT="(venv) "
export VIRTUAL_ENV_PROMPT
fi
# This should detect bash and zsh, which have a hash command that must
# be called to get it to forget past commands. Without forgetting
# past commands the $PATH changes we made may not be respected
if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then
hash -r 2> /dev/null
fi

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# This file must be used with "source bin/activate.csh" *from csh*.
# You cannot run it directly.
# Created by Davide Di Blasi <davidedb@gmail.com>.
# Ported to Python 3.3 venv by Andrew Svetlov <andrew.svetlov@gmail.com>
alias deactivate 'test $?_OLD_VIRTUAL_PATH != 0 && setenv PATH "$_OLD_VIRTUAL_PATH" && unset _OLD_VIRTUAL_PATH; rehash; test $?_OLD_VIRTUAL_PROMPT != 0 && set prompt="$_OLD_VIRTUAL_PROMPT" && unset _OLD_VIRTUAL_PROMPT; unsetenv VIRTUAL_ENV; unsetenv VIRTUAL_ENV_PROMPT; test "\!:*" != "nondestructive" && unalias deactivate'
# Unset irrelevant variables.
deactivate nondestructive
setenv VIRTUAL_ENV "/home/klein/codeWS/Python3/chess/venv"
set _OLD_VIRTUAL_PATH="$PATH"
setenv PATH "$VIRTUAL_ENV/bin:$PATH"
set _OLD_VIRTUAL_PROMPT="$prompt"
if (! "$?VIRTUAL_ENV_DISABLE_PROMPT") then
set prompt = "(venv) $prompt"
setenv VIRTUAL_ENV_PROMPT "(venv) "
endif
alias pydoc python -m pydoc
rehash

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@@ -1,69 +0,0 @@
# This file must be used with "source <venv>/bin/activate.fish" *from fish*
# (https://fishshell.com/); you cannot run it directly.
function deactivate -d "Exit virtual environment and return to normal shell environment"
# reset old environment variables
if test -n "$_OLD_VIRTUAL_PATH"
set -gx PATH $_OLD_VIRTUAL_PATH
set -e _OLD_VIRTUAL_PATH
end
if test -n "$_OLD_VIRTUAL_PYTHONHOME"
set -gx PYTHONHOME $_OLD_VIRTUAL_PYTHONHOME
set -e _OLD_VIRTUAL_PYTHONHOME
end
if test -n "$_OLD_FISH_PROMPT_OVERRIDE"
set -e _OLD_FISH_PROMPT_OVERRIDE
# prevents error when using nested fish instances (Issue #93858)
if functions -q _old_fish_prompt
functions -e fish_prompt
functions -c _old_fish_prompt fish_prompt
functions -e _old_fish_prompt
end
end
set -e VIRTUAL_ENV
set -e VIRTUAL_ENV_PROMPT
if test "$argv[1]" != "nondestructive"
# Self-destruct!
functions -e deactivate
end
end
# Unset irrelevant variables.
deactivate nondestructive
set -gx VIRTUAL_ENV "/home/klein/codeWS/Python3/chess/venv"
set -gx _OLD_VIRTUAL_PATH $PATH
set -gx PATH "$VIRTUAL_ENV/bin" $PATH
# Unset PYTHONHOME if set.
if set -q PYTHONHOME
set -gx _OLD_VIRTUAL_PYTHONHOME $PYTHONHOME
set -e PYTHONHOME
end
if test -z "$VIRTUAL_ENV_DISABLE_PROMPT"
# fish uses a function instead of an env var to generate the prompt.
# Save the current fish_prompt function as the function _old_fish_prompt.
functions -c fish_prompt _old_fish_prompt
# With the original prompt function renamed, we can override with our own.
function fish_prompt
# Save the return status of the last command.
set -l old_status $status
# Output the venv prompt; color taken from the blue of the Python logo.
printf "%s%s%s" (set_color 4B8BBE) "(venv) " (set_color normal)
# Restore the return status of the previous command.
echo "exit $old_status" | .
# Output the original/"old" prompt.
_old_fish_prompt
end
set -gx _OLD_FISH_PROMPT_OVERRIDE "$VIRTUAL_ENV"
set -gx VIRTUAL_ENV_PROMPT "(venv) "
end

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@@ -1,8 +0,0 @@
#!/home/klein/codeWS/Python3/chess/venv/bin/python3
# -*- coding: utf-8 -*-
import re
import sys
from pip._internal.cli.main import main
if __name__ == '__main__':
sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
sys.exit(main())

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@@ -1,8 +0,0 @@
#!/home/klein/codeWS/Python3/chess/venv/bin/python3
# -*- coding: utf-8 -*-
import re
import sys
from pip._internal.cli.main import main
if __name__ == '__main__':
sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
sys.exit(main())

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@@ -1,8 +0,0 @@
#!/home/klein/codeWS/Python3/chess/venv/bin/python3
# -*- coding: utf-8 -*-
import re
import sys
from pip._internal.cli.main import main
if __name__ == '__main__':
sys.argv[0] = re.sub(r'(-script\.pyw|\.exe)?$', '', sys.argv[0])
sys.exit(main())

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@@ -1 +0,0 @@
python3

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@@ -1 +0,0 @@
/usr/bin/python3

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@@ -1 +0,0 @@
python3

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@@ -1,222 +0,0 @@
# don't import any costly modules
import sys
import os
is_pypy = '__pypy__' in sys.builtin_module_names
def warn_distutils_present():
if 'distutils' not in sys.modules:
return
if is_pypy and sys.version_info < (3, 7):
# PyPy for 3.6 unconditionally imports distutils, so bypass the warning
# https://foss.heptapod.net/pypy/pypy/-/blob/be829135bc0d758997b3566062999ee8b23872b4/lib-python/3/site.py#L250
return
import warnings
warnings.warn(
"Distutils was imported before Setuptools, but importing Setuptools "
"also replaces the `distutils` module in `sys.modules`. This may lead "
"to undesirable behaviors or errors. To avoid these issues, avoid "
"using distutils directly, ensure that setuptools is installed in the "
"traditional way (e.g. not an editable install), and/or make sure "
"that setuptools is always imported before distutils."
)
def clear_distutils():
if 'distutils' not in sys.modules:
return
import warnings
warnings.warn("Setuptools is replacing distutils.")
mods = [
name
for name in sys.modules
if name == "distutils" or name.startswith("distutils.")
]
for name in mods:
del sys.modules[name]
def enabled():
"""
Allow selection of distutils by environment variable.
"""
which = os.environ.get('SETUPTOOLS_USE_DISTUTILS', 'local')
return which == 'local'
def ensure_local_distutils():
import importlib
clear_distutils()
# With the DistutilsMetaFinder in place,
# perform an import to cause distutils to be
# loaded from setuptools._distutils. Ref #2906.
with shim():
importlib.import_module('distutils')
# check that submodules load as expected
core = importlib.import_module('distutils.core')
assert '_distutils' in core.__file__, core.__file__
assert 'setuptools._distutils.log' not in sys.modules
def do_override():
"""
Ensure that the local copy of distutils is preferred over stdlib.
See https://github.com/pypa/setuptools/issues/417#issuecomment-392298401
for more motivation.
"""
if enabled():
warn_distutils_present()
ensure_local_distutils()
class _TrivialRe:
def __init__(self, *patterns):
self._patterns = patterns
def match(self, string):
return all(pat in string for pat in self._patterns)
class DistutilsMetaFinder:
def find_spec(self, fullname, path, target=None):
# optimization: only consider top level modules and those
# found in the CPython test suite.
if path is not None and not fullname.startswith('test.'):
return
method_name = 'spec_for_{fullname}'.format(**locals())
method = getattr(self, method_name, lambda: None)
return method()
def spec_for_distutils(self):
if self.is_cpython():
return
import importlib
import importlib.abc
import importlib.util
try:
mod = importlib.import_module('setuptools._distutils')
except Exception:
# There are a couple of cases where setuptools._distutils
# may not be present:
# - An older Setuptools without a local distutils is
# taking precedence. Ref #2957.
# - Path manipulation during sitecustomize removes
# setuptools from the path but only after the hook
# has been loaded. Ref #2980.
# In either case, fall back to stdlib behavior.
return
class DistutilsLoader(importlib.abc.Loader):
def create_module(self, spec):
mod.__name__ = 'distutils'
return mod
def exec_module(self, module):
pass
return importlib.util.spec_from_loader(
'distutils', DistutilsLoader(), origin=mod.__file__
)
@staticmethod
def is_cpython():
"""
Suppress supplying distutils for CPython (build and tests).
Ref #2965 and #3007.
"""
return os.path.isfile('pybuilddir.txt')
def spec_for_pip(self):
"""
Ensure stdlib distutils when running under pip.
See pypa/pip#8761 for rationale.
"""
if self.pip_imported_during_build():
return
clear_distutils()
self.spec_for_distutils = lambda: None
@classmethod
def pip_imported_during_build(cls):
"""
Detect if pip is being imported in a build script. Ref #2355.
"""
import traceback
return any(
cls.frame_file_is_setup(frame) for frame, line in traceback.walk_stack(None)
)
@staticmethod
def frame_file_is_setup(frame):
"""
Return True if the indicated frame suggests a setup.py file.
"""
# some frames may not have __file__ (#2940)
return frame.f_globals.get('__file__', '').endswith('setup.py')
def spec_for_sensitive_tests(self):
"""
Ensure stdlib distutils when running select tests under CPython.
python/cpython#91169
"""
clear_distutils()
self.spec_for_distutils = lambda: None
sensitive_tests = (
[
'test.test_distutils',
'test.test_peg_generator',
'test.test_importlib',
]
if sys.version_info < (3, 10)
else [
'test.test_distutils',
]
)
for name in DistutilsMetaFinder.sensitive_tests:
setattr(
DistutilsMetaFinder,
f'spec_for_{name}',
DistutilsMetaFinder.spec_for_sensitive_tests,
)
DISTUTILS_FINDER = DistutilsMetaFinder()
def add_shim():
DISTUTILS_FINDER in sys.meta_path or insert_shim()
class shim:
def __enter__(self):
insert_shim()
def __exit__(self, exc, value, tb):
remove_shim()
def insert_shim():
sys.meta_path.insert(0, DISTUTILS_FINDER)
def remove_shim():
try:
sys.meta_path.remove(DISTUTILS_FINDER)
except ValueError:
pass

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@@ -1 +0,0 @@
__import__('_distutils_hack').do_override()

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@@ -1,163 +0,0 @@
# List of authors for Stockfish, as of January 7, 2020
Tord Romstad (romstad)
Marco Costalba (mcostalba)
Joona Kiiski (zamar)
Gary Linscott (glinscott)
Aditya (absimaldata)
Adrian Petrescu (apetresc)
Ajith Chandy Jose (ajithcj)
Alain Savard (Rocky640)
Alayan Feh (Alayan-stk-2)
Alexander Kure
Alexander Pagel (Lolligerhans)
Ali AlZhrani (Cooffe)
Andrew Grant (AndyGrant)
Andrey Neporada (nepal)
Andy Duplain
Aram Tumanian (atumanian)
Arjun Temurnikar
Auguste Pop
Balint Pfliegel
Ben Koshy (BKSpurgeon)
Bill Henry (VoyagerOne)
Bojun Guo (noobpwnftw, Nooby)
braich
Brian Sheppard (SapphireBrand, briansheppard-toast)
Bryan Cross (crossbr)
candirufish
Chess13234
Chris Cain (ceebo)
Dan Schmidt (dfannius)
Daniel Axtens (daxtens)
Daniel Dugovic (ddugovic)
Dariusz Orzechowski
David Zar
Daylen Yang (daylen)
DiscanX
double-beep
Eduardo Cáceres (eduherminio)
Eelco de Groot (KingDefender)
Elvin Liu (solarlight2)
erbsenzaehler
Ernesto Gatti
Fabian Beuke (madnight)
Fabian Fichter (ianfab)
fanon
Fauzi Akram Dabat (FauziAkram)
Felix Wittmann
gamander
gguliash
Gian-Carlo Pascutto (gcp)
Gontran Lemaire (gonlem)
Goodkov Vasiliy Aleksandrovich (goodkov)
Gregor Cramer
GuardianRM
Günther Demetz (pb00067, pb00068)
Guy Vreuls (gvreuls)
Henri Wiechers
Hiraoka Takuya (HiraokaTakuya)
homoSapiensSapiens
Hongzhi Cheng
Ivan Ivec (IIvec)
Jacques B. (Timshel)
Jan Ondruš (hxim)
Jared Kish (Kurtbusch)
Jarrod Torriero (DU-jdto)
Jean Gauthier (OuaisBla)
Jean-Francois Romang (jromang)
Jekaa
Jerry Donald Watson (jerrydonaldwatson)
Jonathan Calovski (Mysseno)
Jonathan Dumale (SFisGOD)
Joost VandeVondele (vondele)
Jörg Oster (joergoster)
Joseph Ellis (jhellis3)
Joseph R. Prostko
jundery
Justin Blanchard (UncombedCoconut)
Kelly Wilson
Ken Takusagawa
kinderchocolate
Kiran Panditrao (Krgp)
Kojirion
Leonardo Ljubičić (ICCF World Champion)
Leonid Pechenik (lp--)
Linus Arver (listx)
loco-loco
Lub van den Berg (ElbertoOne)
Luca Brivio (lucabrivio)
Lucas Braesch (lucasart)
Lyudmil Antonov (lantonov)
Maciej Żenczykowski (zenczykowski)
Malcolm Campbell (xoto10)
Mark Tenzer (31m059)
marotear
Matthew Lai (matthewlai)
Matthew Sullivan (Matt14916)
Michael An (man)
Michael Byrne (MichaelB7)
Michael Chaly (Vizvezdenec)
Michael Stembera (mstembera)
Michael Whiteley (protonspring)
Michel Van den Bergh (vdbergh)
Miguel Lahoz (miguel-l)
Mikael Bäckman (mbootsector)
Mira
Miroslav Fontán (Hexik)
Moez Jellouli (MJZ1977)
Mohammed Li (tthsqe12)
Nathan Rugg (nmrugg)
Nick Pelling (nickpelling)
Nicklas Persson (NicklasPersson)
Niklas Fiekas (niklasf)
Nikolay Kostov (NikolayIT)
Ondrej Mosnáček (WOnder93)
Oskar Werkelin Ahlin
Pablo Vazquez
Panthee
Pascal Romaret
Pasquale Pigazzini (ppigazzini)
Patrick Jansen (mibere)
pellanda
Peter Zsifkovits (CoffeeOne)
Ralph Stößer (Ralph Stoesser)
Raminder Singh
renouve
Reuven Peleg
Richard Lloyd
Rodrigo Exterckötter Tjäder
Ron Britvich (Britvich)
Ronald de Man (syzygy1, syzygy)
Ryan Schmitt
Ryan Takker
Sami Kiminki (skiminki)
Sebastian Buchwald (UniQP)
Sergei Antonov (saproj)
Sergei Ivanov (svivanov72)
sf-x
Shane Booth (shane31)
Stefan Geschwentner (locutus2)
Stefano Cardanobile (Stefano80)
Steinar Gunderson (sesse)
Stéphane Nicolet (snicolet)
Thanar2
thaspel
theo77186
Tom Truscott
Tom Vijlbrief (tomtor)
Torsten Franz (torfranz, tfranzer)
Tracey Emery (basepr1me)
Uri Blass (uriblass)
Vince Negri (cuddlestmonkey)
# Additionally, we acknowledge the authors and maintainers of fishtest,
# an amazing and essential framework for the development of Stockfish!
#
# https://github.com/glinscott/fishtest/blob/master/AUTHORS

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@@ -1,405 +0,0 @@
Metadata-Version: 2.1
Name: chess
Version: 1.10.0
Summary: A chess library with move generation and validation, Polyglot opening book probing, PGN reading and writing, Gaviota tablebase probing, Syzygy tablebase probing, and XBoard/UCI engine communication.
Home-page: https://github.com/niklasf/python-chess
Author: Niklas Fiekas
Author-email: niklas.fiekas@backscattering.de
License: GPL-3.0+
Project-URL: Documentation, https://python-chess.readthedocs.io
Keywords: chess fen epd pgn polyglot syzygy gaviota uci xboard
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: Intended Audience :: Science/Research
Classifier: License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python :: 3 :: Only
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Topic :: Games/Entertainment :: Board Games
Classifier: Topic :: Games/Entertainment :: Turn Based Strategy
Classifier: Topic :: Software Development :: Libraries :: Python Modules
Classifier: Typing :: Typed
Obsoletes: python_chess
Requires-Python: >=3.7
Description-Content-Type: text/x-rst
License-File: LICENSE.txt
License-File: AUTHORS
python-chess: a chess library for Python
========================================
.. image:: https://github.com/niklasf/python-chess/workflows/Test/badge.svg
:target: https://github.com/niklasf/python-chess/actions
:alt: Test status
.. image:: https://badge.fury.io/py/chess.svg
:target: https://pypi.python.org/pypi/chess
:alt: PyPI package
.. image:: https://readthedocs.org/projects/python-chess/badge/?version=v1.10.0
:target: https://python-chess.readthedocs.io/en/v1.10.0/
:alt: Docs
.. image:: https://badges.gitter.im/python-chess/community.svg
:target: https://gitter.im/python-chess/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge
:alt: Chat on Gitter
Introduction
------------
python-chess is a chess library for Python, with move generation,
move validation, and support for common formats. This is the Scholar's mate in
python-chess:
.. code:: python
>>> import chess
>>> board = chess.Board()
>>> board.legal_moves
<LegalMoveGenerator at ... (Nh3, Nf3, Nc3, Na3, h3, g3, f3, e3, d3, c3, ...)>
>>> chess.Move.from_uci("a8a1") in board.legal_moves
False
>>> board.push_san("e4")
Move.from_uci('e2e4')
>>> board.push_san("e5")
Move.from_uci('e7e5')
>>> board.push_san("Qh5")
Move.from_uci('d1h5')
>>> board.push_san("Nc6")
Move.from_uci('b8c6')
>>> board.push_san("Bc4")
Move.from_uci('f1c4')
>>> board.push_san("Nf6")
Move.from_uci('g8f6')
>>> board.push_san("Qxf7")
Move.from_uci('h5f7')
>>> board.is_checkmate()
True
>>> board
Board('r1bqkb1r/pppp1Qpp/2n2n2/4p3/2B1P3/8/PPPP1PPP/RNB1K1NR b KQkq - 0 4')
Installing
----------
Requires Python 3.7+. Download and install the latest release:
::
pip install chess
`Documentation <https://python-chess.readthedocs.io/en/v1.10.0/>`__
--------------------------------------------------------------------
* `Core <https://python-chess.readthedocs.io/en/v1.10.0/core.html>`_
* `PGN parsing and writing <https://python-chess.readthedocs.io/en/v1.10.0/pgn.html>`_
* `Polyglot opening book reading <https://python-chess.readthedocs.io/en/v1.10.0/polyglot.html>`_
* `Gaviota endgame tablebase probing <https://python-chess.readthedocs.io/en/v1.10.0/gaviota.html>`_
* `Syzygy endgame tablebase probing <https://python-chess.readthedocs.io/en/v1.10.0/syzygy.html>`_
* `UCI/XBoard engine communication <https://python-chess.readthedocs.io/en/v1.10.0/engine.html>`_
* `Variants <https://python-chess.readthedocs.io/en/v1.10.0/variant.html>`_
* `Changelog <https://python-chess.readthedocs.io/en/v1.10.0/changelog.html>`_
Features
--------
* Includes mypy typings.
* IPython/Jupyter Notebook integration.
`SVG rendering docs <https://python-chess.readthedocs.io/en/v1.10.0/svg.html>`_.
.. code:: python
>>> board
.. image:: https://backscattering.de/web-boardimage/board.png?fen=r1bqkb1r/pppp1Qpp/2n2n2/4p3/2B1P3/8/PPPP1PPP/RNB1K1NR&lastmove=h5f7&check=e8
:alt: r1bqkb1r/pppp1Qpp/2n2n2/4p3/2B1P3/8/PPPP1PPP/RNB1K1NR
* Chess variants: Standard, Chess960, Suicide, Giveaway, Atomic,
King of the Hill, Racing Kings, Horde, Three-check, Crazyhouse.
`Variant docs <https://python-chess.readthedocs.io/en/v1.10.0/variant.html>`_.
* Make and unmake moves.
.. code:: python
>>> Nf3 = chess.Move.from_uci("g1f3")
>>> board.push(Nf3) # Make the move
>>> board.pop() # Unmake the last move
Move.from_uci('g1f3')
* Show a simple ASCII board.
.. code:: python
>>> board = chess.Board("r1bqkb1r/pppp1Qpp/2n2n2/4p3/2B1P3/8/PPPP1PPP/RNB1K1NR b KQkq - 0 4")
>>> print(board)
r . b q k b . r
p p p p . Q p p
. . n . . n . .
. . . . p . . .
. . B . P . . .
. . . . . . . .
P P P P . P P P
R N B . K . N R
* Detects checkmates, stalemates and draws by insufficient material.
.. code:: python
>>> board.is_stalemate()
False
>>> board.is_insufficient_material()
False
>>> board.outcome()
Outcome(termination=<Termination.CHECKMATE: 1>, winner=True)
* Detects repetitions. Has a half-move clock.
.. code:: python
>>> board.can_claim_threefold_repetition()
False
>>> board.halfmove_clock
0
>>> board.can_claim_fifty_moves()
False
>>> board.can_claim_draw()
False
With the new rules from July 2014, a game ends as a draw (even without a
claim) once a fivefold repetition occurs or if there are 75 moves without
a pawn push or capture. Other ways of ending a game take precedence.
.. code:: python
>>> board.is_fivefold_repetition()
False
>>> board.is_seventyfive_moves()
False
* Detects checks and attacks.
.. code:: python
>>> board.is_check()
True
>>> board.is_attacked_by(chess.WHITE, chess.E8)
True
>>> attackers = board.attackers(chess.WHITE, chess.F3)
>>> attackers
SquareSet(0x0000_0000_0000_4040)
>>> chess.G2 in attackers
True
>>> print(attackers)
. . . . . . . .
. . . . . . . .
. . . . . . . .
. . . . . . . .
. . . . . . . .
. . . . . . . .
. . . . . . 1 .
. . . . . . 1 .
* Parses and creates SAN representation of moves.
.. code:: python
>>> board = chess.Board()
>>> board.san(chess.Move(chess.E2, chess.E4))
'e4'
>>> board.parse_san('Nf3')
Move.from_uci('g1f3')
>>> board.variation_san([chess.Move.from_uci(m) for m in ["e2e4", "e7e5", "g1f3"]])
'1. e4 e5 2. Nf3'
* Parses and creates FENs, extended FENs and Shredder FENs.
.. code:: python
>>> board.fen()
'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1'
>>> board.shredder_fen()
'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w HAha - 0 1'
>>> board = chess.Board("8/8/8/2k5/4K3/8/8/8 w - - 4 45")
>>> board.piece_at(chess.C5)
Piece.from_symbol('k')
* Parses and creates EPDs.
.. code:: python
>>> board = chess.Board()
>>> board.epd(bm=board.parse_uci("d2d4"))
'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - bm d4;'
>>> ops = board.set_epd("1k1r4/pp1b1R2/3q2pp/4p3/2B5/4Q3/PPP2B2/2K5 b - - bm Qd1+; id \"BK.01\";")
>>> ops == {'bm': [chess.Move.from_uci('d6d1')], 'id': 'BK.01'}
True
* Detects `absolute pins and their directions <https://python-chess.readthedocs.io/en/v1.10.0/core.html#chess.Board.pin>`_.
* Reads Polyglot opening books.
`Docs <https://python-chess.readthedocs.io/en/v1.10.0/polyglot.html>`__.
.. code:: python
>>> import chess.polyglot
>>> book = chess.polyglot.open_reader("data/polyglot/performance.bin")
>>> board = chess.Board()
>>> main_entry = book.find(board)
>>> main_entry.move
Move.from_uci('e2e4')
>>> main_entry.weight
1
>>> book.close()
* Reads and writes PGNs. Supports headers, comments, NAGs and a tree of
variations.
`Docs <https://python-chess.readthedocs.io/en/v1.10.0/pgn.html>`__.
.. code:: python
>>> import chess.pgn
>>> with open("data/pgn/molinari-bordais-1979.pgn") as pgn:
... first_game = chess.pgn.read_game(pgn)
>>> first_game.headers["White"]
'Molinari'
>>> first_game.headers["Black"]
'Bordais'
>>> first_game.mainline()
<Mainline at ... (1. e4 c5 2. c4 Nc6 3. Ne2 Nf6 4. Nbc3 Nb4 5. g3 Nd3#)>
>>> first_game.headers["Result"]
'0-1'
* Probe Gaviota endgame tablebases (DTM, WDL).
`Docs <https://python-chess.readthedocs.io/en/v1.10.0/gaviota.html>`__.
* Probe Syzygy endgame tablebases (DTZ, WDL).
`Docs <https://python-chess.readthedocs.io/en/v1.10.0/syzygy.html>`__.
.. code:: python
>>> import chess.syzygy
>>> tablebase = chess.syzygy.open_tablebase("data/syzygy/regular")
>>> # Black to move is losing in 53 half moves (distance to zero) in this
>>> # KNBvK endgame.
>>> board = chess.Board("8/2K5/4B3/3N4/8/8/4k3/8 b - - 0 1")
>>> tablebase.probe_dtz(board)
-53
>>> tablebase.close()
* Communicate with UCI/XBoard engines. Based on ``asyncio``.
`Docs <https://python-chess.readthedocs.io/en/v1.10.0/engine.html>`__.
.. code:: python
>>> import chess.engine
>>> engine = chess.engine.SimpleEngine.popen_uci("stockfish")
>>> board = chess.Board("1k1r4/pp1b1R2/3q2pp/4p3/2B5/4Q3/PPP2B2/2K5 b - - 0 1")
>>> limit = chess.engine.Limit(time=2.0)
>>> engine.play(board, limit)
<PlayResult at ... (move=d6d1, ponder=c1d1, info={...}, draw_offered=False, resigned=False)>
>>> engine.quit()
Selected projects
-----------------
If you like, share interesting things you are using python-chess for, for example:
+------------------------------------------------------------------------------------------------------+----------------------------------------------------------------------------------------------+
| .. image:: https://github.com/niklasf/python-chess/blob/master/docs/images/syzygy.png?raw=true | https://syzygy-tables.info/ |
| :height: 64 | |
| :width: 64 | |
| :target: https://syzygy-tables.info/ | A website to probe Syzygy endgame tablebases |
+------------------------------------------------------------------------------------------------------+----------------------------------------------------------------------------------------------+
| .. image:: https://github.com/niklasf/python-chess/blob/master/docs/images/maia.png?raw=true | https://maiachess.com/ |
| :height: 64 | |
| :width: 64 | |
| :target: https://maiachess.com/ | A human-like neural network chess engine |
+------------------------------------------------------------------------------------------------------+----------------------------------------------------------------------------------------------+
| .. image:: https://github.com/niklasf/python-chess/blob/master/docs/images/clente-chess.png?raw=true | `clente/chess <https://github.com/clente/chess>`_ |
| :height: 64 | |
| :width: 64 | |
| :target: https://github.com/clente/chess | Oppinionated wrapper to use python-chess from the R programming language |
+------------------------------------------------------------------------------------------------------+----------------------------------------------------------------------------------------------+
| .. image:: https://github.com/niklasf/python-chess/blob/master/docs/images/crazyara.png?raw=true | https://crazyara.org/ |
| :height: 64 | |
| :width: 64 | |
| :target: https://crazyara.org/ | Deep learning for Crazyhouse |
+------------------------------------------------------------------------------------------------------+----------------------------------------------------------------------------------------------+
| .. image:: https://github.com/niklasf/python-chess/blob/master/docs/images/jcchess.png?raw=true | `http://johncheetham.com <http://johncheetham.com/projects/jcchess/>`_ |
| :height: 64 | |
| :width: 64 | |
| :target: http://johncheetham.com/projects/jcchess/ | A GUI to play against UCI chess engines |
+------------------------------------------------------------------------------------------------------+----------------------------------------------------------------------------------------------+
| .. image:: https://github.com/niklasf/python-chess/blob/master/docs/images/pettingzoo.png?raw=true | `https://pettingzoo.farama.org <https://pettingzoo.farama.org/environments/classic/chess/>`_ |
| :width: 64 | |
| :height: 64 | |
| :target: https://pettingzoo.farama.org/environments/classic/chess/ | A multi-agent reinforcement learning environment |
+------------------------------------------------------------------------------------------------------+----------------------------------------------------------------------------------------------+
| .. image:: https://github.com/niklasf/python-chess/blob/master/docs/images/cli-chess.png?raw=true | `cli-chess <https://github.com/trevorbayless/cli-chess>`_ |
| :width: 64 | |
| :height: 64 | |
| :target: https://github.com/trevorbayless/cli-chess | A highly customizable way to play chess in your terminal |
+------------------------------------------------------------------------------------------------------+----------------------------------------------------------------------------------------------+
* extensions to build engines (search and evaluation) https://github.com/Mk-Chan/python-chess-engine-extensions
* a stand-alone chess computer based on DGT board http://www.picochess.org/
* a bridge between Lichess API and chess engines https://github.com/careless25/lichess-bot
* a command-line PGN annotator https://github.com/rpdelaney/python-chess-annotator
* an HTTP microservice to render board images https://github.com/niklasf/web-boardimage
* building a toy chess engine with alpha-beta pruning, piece-square tables, and move ordering https://healeycodes.com/building-my-own-chess-engine/
* a JIT compiled chess engine https://github.com/SamRagusa/Batch-First
* teaching Cognitive Science `https://jupyter.brynmawr.edu <https://jupyter.brynmawr.edu/services/public/dblank/CS371%20Cognitive%20Science/2016-Fall/Programming%20a%20Chess%20Player.ipynb>`_
* an `Alexa skill to play blindfold chess <https://www.amazon.com/Laynr-blindfold-chess/dp/B0859QF8YL>`_ https://github.com/laynr/blindfold-chess
* a chessboard widget for PySide2 https://github.com/H-a-y-k/hichesslib
* Django Rest Framework API for multiplayer chess https://github.com/WorkShoft/capablanca-api
* a `browser based PGN viewer <https://about.nmstoker.com/chess2.html>`_ written in PyScript https://github.com/nmstoker/ChessMatchViewer
* an accessible chessboard that allows blind and visually impaired players to play chess against Stockfish https://github.com/blindpandas/chessmart
Acknowledgements
----------------
Thanks to the Stockfish authors and thanks to Sam Tannous for publishing his
approach to `avoid rotated bitboards with direct lookup (PDF) <http://arxiv.org/pdf/0704.3773.pdf>`_
alongside his GPL2+ engine `Shatranj <https://github.com/stannous/shatranj>`_.
Some move generation ideas are taken from these sources.
Thanks to Ronald de Man for his
`Syzygy endgame tablebases <https://github.com/syzygy1/tb>`_.
The probing code in python-chess is very directly ported from his C probing code.
Thanks to `Kristian Glass <https://github.com/doismellburning>`_ for
transferring the namespace ``chess`` on PyPI.
License
-------
python-chess is licensed under the GPL 3 (or any later version at your option).
Check out LICENSE.txt for the full text.

View File

@@ -1,27 +0,0 @@
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chess-1.10.0.dist-info/LICENSE.txt,sha256=jOtLnuWt7d5Hsx6XXB2QxzrSe2sWWh3NgMfFRetluQM,35147
chess-1.10.0.dist-info/METADATA,sha256=IYcrcjP5Wkaai5AyweFfk2ljhZasQ3-mZirBrHj_hAA,19766
chess-1.10.0.dist-info/RECORD,,
chess-1.10.0.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
chess-1.10.0.dist-info/WHEEL,sha256=pkctZYzUS4AYVn6dJ-7367OJZivF2e8RA9b_ZBjif18,92
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chess/__init__.py,sha256=DOLml3zGP_txy9osquR31T-SYvO-IAkepxWOIg9eRfI,147552
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chess/__pycache__/_interactive.cpython-311.pyc,,
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chess/gaviota.py,sha256=FHkFZ_7Lm20oL4iOSbRTecC0xzM8QxCbNZ1Qc6oENYQ,63004
chess/pgn.py,sha256=NDThgqgP2N_pqg86iuRwVOrxTISWMUfurKX4RJXCHmM,58783
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chess/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
chess/svg.py,sha256=8tBkoF1uCb_bchboVe8lYaSLSuIwsfSOMbgTEf_yw0Y,33835
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Wheel-Version: 1.0
Generator: bdist_wheel (0.40.0)
Root-Is-Purelib: true
Tag: py3-none-any

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# TODO: Fix typing in this file.
# mypy: ignore-errors
import chess.svg
class WidgetError(Exception):
"""
raised when ipywidgets is not installed
"""
class NotJupyter(Exception):
"""
raised when InteractiveViewer is instantiated from a non jupyter shell
"""
try:
from ipywidgets import Button, GridBox, Layout, HTML, Output, HBox, Select
from IPython.display import display, clear_output
except ModuleNotFoundError:
raise WidgetError("You need to have ipywidgets installed and running from Jupyter")
class InteractiveViewer:
def __new__(cls, game):
jupyter = True
try:
if get_ipython().__class__.__name__ != "ZMQInteractiveShell":
jupyter = False
except NameError:
jupyter = False
if not jupyter:
raise NotJupyter("The interactive viewer only runs in Jupyter shell")
return object.__new__(cls)
def __init__(self, game):
self.game = game
self.__board = game.board()
self.__moves = list(game.mainline_moves())
self.__white_moves = [str(move) for (i, move) in enumerate(self.__moves) if i % 2 == 0]
self.__black_moves = [str(move) for (i, move) in enumerate(self.__moves) if i % 2 == 1]
self.__move_list_len = len(self.__white_moves)
self.__num_moves = len(self.__moves)
self.__next_move = 0 if self.__moves else None
self.__out = Output()
def __next_click(self, _):
move = self.__moves[self.__next_move]
self.__next_move += 1
self.__board.push(move)
self.show()
def __prev_click(self, _):
self.__board.pop()
self.__next_move -= 1
self.show()
def __reset_click(self, _):
self.__board.reset()
self.__next_move = 0
self.show()
def __white_select_change(self, change):
new = change["new"]
if (isinstance(new, dict)) and ("index" in new):
target = new["index"] * 2
self.__seek(target)
self.show()
def __black_select_change(self, change):
new = change["new"]
if (isinstance(new, dict)) and ("index" in new):
target = new["index"] * 2 + 1
self.__seek(target)
self.show()
def __seek(self, target):
while self.__next_move <= target:
move = self.__moves[self.__next_move]
self.__next_move += 1
self.__board.push(move)
while self.__next_move > target + 1:
self.__board.pop()
self.__next_move -= 1
def show(self):
display(self.__out)
next_move = Button(
icon="step-forward",
layout=Layout(width="60px", grid_area="right"),
disabled=self.__next_move >= self.__num_moves,
)
prev_move = Button(
icon="step-backward",
layout=Layout(width="60px", grid_area="left"),
disabled=self.__next_move == 0,
)
reset = Button(
icon="stop",
layout=Layout(width="60px", grid_area="middle"),
disabled=self.__next_move == 0,
)
if self.__next_move == 0:
white_move = None
black_move = None
else:
white_move = (
self.__white_moves[self.__next_move // 2]
if (self.__next_move % 2) == 1
else None
)
black_move = (
self.__black_moves[self.__next_move // 2 - 1]
if (self.__next_move % 2) == 0
else None
)
white_move_list = Select(
options=self.__white_moves,
value=white_move,
rows=max(self.__move_list_len, 24),
disabled=False,
layout=Layout(width="80px"),
)
black_move_list = Select(
options=self.__black_moves,
value=black_move,
rows=max(self.__move_list_len, 24),
disabled=False,
layout=Layout(width="80px"),
)
white_move_list.observe(self.__white_select_change)
black_move_list.observe(self.__black_select_change)
move_number_width = 3 + len(str(self.__move_list_len)) * 10
move_number = Select(
options=range(1, self.__move_list_len + 1),
value=None,
disabled=True,
rows=max(self.__move_list_len, 24),
layout=Layout(width=f"{move_number_width}px"),
)
move_list = HBox(
[move_number, white_move_list, black_move_list],
layout=Layout(height="407px", grid_area="moves"),
)
next_move.on_click(self.__next_click)
prev_move.on_click(self.__prev_click)
reset.on_click(self.__reset_click)
with self.__out:
grid_box = GridBox(
children=[next_move, prev_move, reset, self.svg, move_list],
layout=Layout(
width=f"{390+move_number_width+160}px",
grid_template_rows="90% 10%",
grid_template_areas="""
"top top top top top moves"
". left middle right . moves"
""",
),
)
clear_output(wait=True)
display(grid_box)
@property
def svg(self) -> HTML:
svg = chess.svg.board(
board=self.__board,
size=390,
lastmove=self.__board.peek() if self.__board.move_stack else None,
check=self.__board.king(self.__board.turn)
if self.__board.is_check()
else None,
)
svg_widget = HTML(value=svg, layout=Layout(grid_area="top"))
return svg_widget

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@@ -1,535 +0,0 @@
# This file is part of the python-chess library.
# Copyright (C) 2012-2021 Niklas Fiekas <niklas.fiekas@backscattering.de>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from __future__ import annotations
import chess
import struct
import os
import mmap
import random
import typing
from types import TracebackType
from typing import Callable, Container, Iterator, List, NamedTuple, Optional, Type, Union
PathLike = Union[str, bytes, os.PathLike]
ENTRY_STRUCT = struct.Struct(">QHHI")
POLYGLOT_RANDOM_ARRAY = [
0x9D39247E33776D41, 0x2AF7398005AAA5C7, 0x44DB015024623547, 0x9C15F73E62A76AE2,
0x75834465489C0C89, 0x3290AC3A203001BF, 0x0FBBAD1F61042279, 0xE83A908FF2FB60CA,
0x0D7E765D58755C10, 0x1A083822CEAFE02D, 0x9605D5F0E25EC3B0, 0xD021FF5CD13A2ED5,
0x40BDF15D4A672E32, 0x011355146FD56395, 0x5DB4832046F3D9E5, 0x239F8B2D7FF719CC,
0x05D1A1AE85B49AA1, 0x679F848F6E8FC971, 0x7449BBFF801FED0B, 0x7D11CDB1C3B7ADF0,
0x82C7709E781EB7CC, 0xF3218F1C9510786C, 0x331478F3AF51BBE6, 0x4BB38DE5E7219443,
0xAA649C6EBCFD50FC, 0x8DBD98A352AFD40B, 0x87D2074B81D79217, 0x19F3C751D3E92AE1,
0xB4AB30F062B19ABF, 0x7B0500AC42047AC4, 0xC9452CA81A09D85D, 0x24AA6C514DA27500,
0x4C9F34427501B447, 0x14A68FD73C910841, 0xA71B9B83461CBD93, 0x03488B95B0F1850F,
0x637B2B34FF93C040, 0x09D1BC9A3DD90A94, 0x3575668334A1DD3B, 0x735E2B97A4C45A23,
0x18727070F1BD400B, 0x1FCBACD259BF02E7, 0xD310A7C2CE9B6555, 0xBF983FE0FE5D8244,
0x9F74D14F7454A824, 0x51EBDC4AB9BA3035, 0x5C82C505DB9AB0FA, 0xFCF7FE8A3430B241,
0x3253A729B9BA3DDE, 0x8C74C368081B3075, 0xB9BC6C87167C33E7, 0x7EF48F2B83024E20,
0x11D505D4C351BD7F, 0x6568FCA92C76A243, 0x4DE0B0F40F32A7B8, 0x96D693460CC37E5D,
0x42E240CB63689F2F, 0x6D2BDCDAE2919661, 0x42880B0236E4D951, 0x5F0F4A5898171BB6,
0x39F890F579F92F88, 0x93C5B5F47356388B, 0x63DC359D8D231B78, 0xEC16CA8AEA98AD76,
0x5355F900C2A82DC7, 0x07FB9F855A997142, 0x5093417AA8A7ED5E, 0x7BCBC38DA25A7F3C,
0x19FC8A768CF4B6D4, 0x637A7780DECFC0D9, 0x8249A47AEE0E41F7, 0x79AD695501E7D1E8,
0x14ACBAF4777D5776, 0xF145B6BECCDEA195, 0xDABF2AC8201752FC, 0x24C3C94DF9C8D3F6,
0xBB6E2924F03912EA, 0x0CE26C0B95C980D9, 0xA49CD132BFBF7CC4, 0xE99D662AF4243939,
0x27E6AD7891165C3F, 0x8535F040B9744FF1, 0x54B3F4FA5F40D873, 0x72B12C32127FED2B,
0xEE954D3C7B411F47, 0x9A85AC909A24EAA1, 0x70AC4CD9F04F21F5, 0xF9B89D3E99A075C2,
0x87B3E2B2B5C907B1, 0xA366E5B8C54F48B8, 0xAE4A9346CC3F7CF2, 0x1920C04D47267BBD,
0x87BF02C6B49E2AE9, 0x092237AC237F3859, 0xFF07F64EF8ED14D0, 0x8DE8DCA9F03CC54E,
0x9C1633264DB49C89, 0xB3F22C3D0B0B38ED, 0x390E5FB44D01144B, 0x5BFEA5B4712768E9,
0x1E1032911FA78984, 0x9A74ACB964E78CB3, 0x4F80F7A035DAFB04, 0x6304D09A0B3738C4,
0x2171E64683023A08, 0x5B9B63EB9CEFF80C, 0x506AACF489889342, 0x1881AFC9A3A701D6,
0x6503080440750644, 0xDFD395339CDBF4A7, 0xEF927DBCF00C20F2, 0x7B32F7D1E03680EC,
0xB9FD7620E7316243, 0x05A7E8A57DB91B77, 0xB5889C6E15630A75, 0x4A750A09CE9573F7,
0xCF464CEC899A2F8A, 0xF538639CE705B824, 0x3C79A0FF5580EF7F, 0xEDE6C87F8477609D,
0x799E81F05BC93F31, 0x86536B8CF3428A8C, 0x97D7374C60087B73, 0xA246637CFF328532,
0x043FCAE60CC0EBA0, 0x920E449535DD359E, 0x70EB093B15B290CC, 0x73A1921916591CBD,
0x56436C9FE1A1AA8D, 0xEFAC4B70633B8F81, 0xBB215798D45DF7AF, 0x45F20042F24F1768,
0x930F80F4E8EB7462, 0xFF6712FFCFD75EA1, 0xAE623FD67468AA70, 0xDD2C5BC84BC8D8FC,
0x7EED120D54CF2DD9, 0x22FE545401165F1C, 0xC91800E98FB99929, 0x808BD68E6AC10365,
0xDEC468145B7605F6, 0x1BEDE3A3AEF53302, 0x43539603D6C55602, 0xAA969B5C691CCB7A,
0xA87832D392EFEE56, 0x65942C7B3C7E11AE, 0xDED2D633CAD004F6, 0x21F08570F420E565,
0xB415938D7DA94E3C, 0x91B859E59ECB6350, 0x10CFF333E0ED804A, 0x28AED140BE0BB7DD,
0xC5CC1D89724FA456, 0x5648F680F11A2741, 0x2D255069F0B7DAB3, 0x9BC5A38EF729ABD4,
0xEF2F054308F6A2BC, 0xAF2042F5CC5C2858, 0x480412BAB7F5BE2A, 0xAEF3AF4A563DFE43,
0x19AFE59AE451497F, 0x52593803DFF1E840, 0xF4F076E65F2CE6F0, 0x11379625747D5AF3,
0xBCE5D2248682C115, 0x9DA4243DE836994F, 0x066F70B33FE09017, 0x4DC4DE189B671A1C,
0x51039AB7712457C3, 0xC07A3F80C31FB4B4, 0xB46EE9C5E64A6E7C, 0xB3819A42ABE61C87,
0x21A007933A522A20, 0x2DF16F761598AA4F, 0x763C4A1371B368FD, 0xF793C46702E086A0,
0xD7288E012AEB8D31, 0xDE336A2A4BC1C44B, 0x0BF692B38D079F23, 0x2C604A7A177326B3,
0x4850E73E03EB6064, 0xCFC447F1E53C8E1B, 0xB05CA3F564268D99, 0x9AE182C8BC9474E8,
0xA4FC4BD4FC5558CA, 0xE755178D58FC4E76, 0x69B97DB1A4C03DFE, 0xF9B5B7C4ACC67C96,
0xFC6A82D64B8655FB, 0x9C684CB6C4D24417, 0x8EC97D2917456ED0, 0x6703DF9D2924E97E,
0xC547F57E42A7444E, 0x78E37644E7CAD29E, 0xFE9A44E9362F05FA, 0x08BD35CC38336615,
0x9315E5EB3A129ACE, 0x94061B871E04DF75, 0xDF1D9F9D784BA010, 0x3BBA57B68871B59D,
0xD2B7ADEEDED1F73F, 0xF7A255D83BC373F8, 0xD7F4F2448C0CEB81, 0xD95BE88CD210FFA7,
0x336F52F8FF4728E7, 0xA74049DAC312AC71, 0xA2F61BB6E437FDB5, 0x4F2A5CB07F6A35B3,
0x87D380BDA5BF7859, 0x16B9F7E06C453A21, 0x7BA2484C8A0FD54E, 0xF3A678CAD9A2E38C,
0x39B0BF7DDE437BA2, 0xFCAF55C1BF8A4424, 0x18FCF680573FA594, 0x4C0563B89F495AC3,
0x40E087931A00930D, 0x8CFFA9412EB642C1, 0x68CA39053261169F, 0x7A1EE967D27579E2,
0x9D1D60E5076F5B6F, 0x3810E399B6F65BA2, 0x32095B6D4AB5F9B1, 0x35CAB62109DD038A,
0xA90B24499FCFAFB1, 0x77A225A07CC2C6BD, 0x513E5E634C70E331, 0x4361C0CA3F692F12,
0xD941ACA44B20A45B, 0x528F7C8602C5807B, 0x52AB92BEB9613989, 0x9D1DFA2EFC557F73,
0x722FF175F572C348, 0x1D1260A51107FE97, 0x7A249A57EC0C9BA2, 0x04208FE9E8F7F2D6,
0x5A110C6058B920A0, 0x0CD9A497658A5698, 0x56FD23C8F9715A4C, 0x284C847B9D887AAE,
0x04FEABFBBDB619CB, 0x742E1E651C60BA83, 0x9A9632E65904AD3C, 0x881B82A13B51B9E2,
0x506E6744CD974924, 0xB0183DB56FFC6A79, 0x0ED9B915C66ED37E, 0x5E11E86D5873D484,
0xF678647E3519AC6E, 0x1B85D488D0F20CC5, 0xDAB9FE6525D89021, 0x0D151D86ADB73615,
0xA865A54EDCC0F019, 0x93C42566AEF98FFB, 0x99E7AFEABE000731, 0x48CBFF086DDF285A,
0x7F9B6AF1EBF78BAF, 0x58627E1A149BBA21, 0x2CD16E2ABD791E33, 0xD363EFF5F0977996,
0x0CE2A38C344A6EED, 0x1A804AADB9CFA741, 0x907F30421D78C5DE, 0x501F65EDB3034D07,
0x37624AE5A48FA6E9, 0x957BAF61700CFF4E, 0x3A6C27934E31188A, 0xD49503536ABCA345,
0x088E049589C432E0, 0xF943AEE7FEBF21B8, 0x6C3B8E3E336139D3, 0x364F6FFA464EE52E,
0xD60F6DCEDC314222, 0x56963B0DCA418FC0, 0x16F50EDF91E513AF, 0xEF1955914B609F93,
0x565601C0364E3228, 0xECB53939887E8175, 0xBAC7A9A18531294B, 0xB344C470397BBA52,
0x65D34954DAF3CEBD, 0xB4B81B3FA97511E2, 0xB422061193D6F6A7, 0x071582401C38434D,
0x7A13F18BBEDC4FF5, 0xBC4097B116C524D2, 0x59B97885E2F2EA28, 0x99170A5DC3115544,
0x6F423357E7C6A9F9, 0x325928EE6E6F8794, 0xD0E4366228B03343, 0x565C31F7DE89EA27,
0x30F5611484119414, 0xD873DB391292ED4F, 0x7BD94E1D8E17DEBC, 0xC7D9F16864A76E94,
0x947AE053EE56E63C, 0xC8C93882F9475F5F, 0x3A9BF55BA91F81CA, 0xD9A11FBB3D9808E4,
0x0FD22063EDC29FCA, 0xB3F256D8ACA0B0B9, 0xB03031A8B4516E84, 0x35DD37D5871448AF,
0xE9F6082B05542E4E, 0xEBFAFA33D7254B59, 0x9255ABB50D532280, 0xB9AB4CE57F2D34F3,
0x693501D628297551, 0xC62C58F97DD949BF, 0xCD454F8F19C5126A, 0xBBE83F4ECC2BDECB,
0xDC842B7E2819E230, 0xBA89142E007503B8, 0xA3BC941D0A5061CB, 0xE9F6760E32CD8021,
0x09C7E552BC76492F, 0x852F54934DA55CC9, 0x8107FCCF064FCF56, 0x098954D51FFF6580,
0x23B70EDB1955C4BF, 0xC330DE426430F69D, 0x4715ED43E8A45C0A, 0xA8D7E4DAB780A08D,
0x0572B974F03CE0BB, 0xB57D2E985E1419C7, 0xE8D9ECBE2CF3D73F, 0x2FE4B17170E59750,
0x11317BA87905E790, 0x7FBF21EC8A1F45EC, 0x1725CABFCB045B00, 0x964E915CD5E2B207,
0x3E2B8BCBF016D66D, 0xBE7444E39328A0AC, 0xF85B2B4FBCDE44B7, 0x49353FEA39BA63B1,
0x1DD01AAFCD53486A, 0x1FCA8A92FD719F85, 0xFC7C95D827357AFA, 0x18A6A990C8B35EBD,
0xCCCB7005C6B9C28D, 0x3BDBB92C43B17F26, 0xAA70B5B4F89695A2, 0xE94C39A54A98307F,
0xB7A0B174CFF6F36E, 0xD4DBA84729AF48AD, 0x2E18BC1AD9704A68, 0x2DE0966DAF2F8B1C,
0xB9C11D5B1E43A07E, 0x64972D68DEE33360, 0x94628D38D0C20584, 0xDBC0D2B6AB90A559,
0xD2733C4335C6A72F, 0x7E75D99D94A70F4D, 0x6CED1983376FA72B, 0x97FCAACBF030BC24,
0x7B77497B32503B12, 0x8547EDDFB81CCB94, 0x79999CDFF70902CB, 0xCFFE1939438E9B24,
0x829626E3892D95D7, 0x92FAE24291F2B3F1, 0x63E22C147B9C3403, 0xC678B6D860284A1C,
0x5873888850659AE7, 0x0981DCD296A8736D, 0x9F65789A6509A440, 0x9FF38FED72E9052F,
0xE479EE5B9930578C, 0xE7F28ECD2D49EECD, 0x56C074A581EA17FE, 0x5544F7D774B14AEF,
0x7B3F0195FC6F290F, 0x12153635B2C0CF57, 0x7F5126DBBA5E0CA7, 0x7A76956C3EAFB413,
0x3D5774A11D31AB39, 0x8A1B083821F40CB4, 0x7B4A38E32537DF62, 0x950113646D1D6E03,
0x4DA8979A0041E8A9, 0x3BC36E078F7515D7, 0x5D0A12F27AD310D1, 0x7F9D1A2E1EBE1327,
0xDA3A361B1C5157B1, 0xDCDD7D20903D0C25, 0x36833336D068F707, 0xCE68341F79893389,
0xAB9090168DD05F34, 0x43954B3252DC25E5, 0xB438C2B67F98E5E9, 0x10DCD78E3851A492,
0xDBC27AB5447822BF, 0x9B3CDB65F82CA382, 0xB67B7896167B4C84, 0xBFCED1B0048EAC50,
0xA9119B60369FFEBD, 0x1FFF7AC80904BF45, 0xAC12FB171817EEE7, 0xAF08DA9177DDA93D,
0x1B0CAB936E65C744, 0xB559EB1D04E5E932, 0xC37B45B3F8D6F2BA, 0xC3A9DC228CAAC9E9,
0xF3B8B6675A6507FF, 0x9FC477DE4ED681DA, 0x67378D8ECCEF96CB, 0x6DD856D94D259236,
0xA319CE15B0B4DB31, 0x073973751F12DD5E, 0x8A8E849EB32781A5, 0xE1925C71285279F5,
0x74C04BF1790C0EFE, 0x4DDA48153C94938A, 0x9D266D6A1CC0542C, 0x7440FB816508C4FE,
0x13328503DF48229F, 0xD6BF7BAEE43CAC40, 0x4838D65F6EF6748F, 0x1E152328F3318DEA,
0x8F8419A348F296BF, 0x72C8834A5957B511, 0xD7A023A73260B45C, 0x94EBC8ABCFB56DAE,
0x9FC10D0F989993E0, 0xDE68A2355B93CAE6, 0xA44CFE79AE538BBE, 0x9D1D84FCCE371425,
0x51D2B1AB2DDFB636, 0x2FD7E4B9E72CD38C, 0x65CA5B96B7552210, 0xDD69A0D8AB3B546D,
0x604D51B25FBF70E2, 0x73AA8A564FB7AC9E, 0x1A8C1E992B941148, 0xAAC40A2703D9BEA0,
0x764DBEAE7FA4F3A6, 0x1E99B96E70A9BE8B, 0x2C5E9DEB57EF4743, 0x3A938FEE32D29981,
0x26E6DB8FFDF5ADFE, 0x469356C504EC9F9D, 0xC8763C5B08D1908C, 0x3F6C6AF859D80055,
0x7F7CC39420A3A545, 0x9BFB227EBDF4C5CE, 0x89039D79D6FC5C5C, 0x8FE88B57305E2AB6,
0xA09E8C8C35AB96DE, 0xFA7E393983325753, 0xD6B6D0ECC617C699, 0xDFEA21EA9E7557E3,
0xB67C1FA481680AF8, 0xCA1E3785A9E724E5, 0x1CFC8BED0D681639, 0xD18D8549D140CAEA,
0x4ED0FE7E9DC91335, 0xE4DBF0634473F5D2, 0x1761F93A44D5AEFE, 0x53898E4C3910DA55,
0x734DE8181F6EC39A, 0x2680B122BAA28D97, 0x298AF231C85BAFAB, 0x7983EED3740847D5,
0x66C1A2A1A60CD889, 0x9E17E49642A3E4C1, 0xEDB454E7BADC0805, 0x50B704CAB602C329,
0x4CC317FB9CDDD023, 0x66B4835D9EAFEA22, 0x219B97E26FFC81BD, 0x261E4E4C0A333A9D,
0x1FE2CCA76517DB90, 0xD7504DFA8816EDBB, 0xB9571FA04DC089C8, 0x1DDC0325259B27DE,
0xCF3F4688801EB9AA, 0xF4F5D05C10CAB243, 0x38B6525C21A42B0E, 0x36F60E2BA4FA6800,
0xEB3593803173E0CE, 0x9C4CD6257C5A3603, 0xAF0C317D32ADAA8A, 0x258E5A80C7204C4B,
0x8B889D624D44885D, 0xF4D14597E660F855, 0xD4347F66EC8941C3, 0xE699ED85B0DFB40D,
0x2472F6207C2D0484, 0xC2A1E7B5B459AEB5, 0xAB4F6451CC1D45EC, 0x63767572AE3D6174,
0xA59E0BD101731A28, 0x116D0016CB948F09, 0x2CF9C8CA052F6E9F, 0x0B090A7560A968E3,
0xABEEDDB2DDE06FF1, 0x58EFC10B06A2068D, 0xC6E57A78FBD986E0, 0x2EAB8CA63CE802D7,
0x14A195640116F336, 0x7C0828DD624EC390, 0xD74BBE77E6116AC7, 0x804456AF10F5FB53,
0xEBE9EA2ADF4321C7, 0x03219A39EE587A30, 0x49787FEF17AF9924, 0xA1E9300CD8520548,
0x5B45E522E4B1B4EF, 0xB49C3B3995091A36, 0xD4490AD526F14431, 0x12A8F216AF9418C2,
0x001F837CC7350524, 0x1877B51E57A764D5, 0xA2853B80F17F58EE, 0x993E1DE72D36D310,
0xB3598080CE64A656, 0x252F59CF0D9F04BB, 0xD23C8E176D113600, 0x1BDA0492E7E4586E,
0x21E0BD5026C619BF, 0x3B097ADAF088F94E, 0x8D14DEDB30BE846E, 0xF95CFFA23AF5F6F4,
0x3871700761B3F743, 0xCA672B91E9E4FA16, 0x64C8E531BFF53B55, 0x241260ED4AD1E87D,
0x106C09B972D2E822, 0x7FBA195410E5CA30, 0x7884D9BC6CB569D8, 0x0647DFEDCD894A29,
0x63573FF03E224774, 0x4FC8E9560F91B123, 0x1DB956E450275779, 0xB8D91274B9E9D4FB,
0xA2EBEE47E2FBFCE1, 0xD9F1F30CCD97FB09, 0xEFED53D75FD64E6B, 0x2E6D02C36017F67F,
0xA9AA4D20DB084E9B, 0xB64BE8D8B25396C1, 0x70CB6AF7C2D5BCF0, 0x98F076A4F7A2322E,
0xBF84470805E69B5F, 0x94C3251F06F90CF3, 0x3E003E616A6591E9, 0xB925A6CD0421AFF3,
0x61BDD1307C66E300, 0xBF8D5108E27E0D48, 0x240AB57A8B888B20, 0xFC87614BAF287E07,
0xEF02CDD06FFDB432, 0xA1082C0466DF6C0A, 0x8215E577001332C8, 0xD39BB9C3A48DB6CF,
0x2738259634305C14, 0x61CF4F94C97DF93D, 0x1B6BACA2AE4E125B, 0x758F450C88572E0B,
0x959F587D507A8359, 0xB063E962E045F54D, 0x60E8ED72C0DFF5D1, 0x7B64978555326F9F,
0xFD080D236DA814BA, 0x8C90FD9B083F4558, 0x106F72FE81E2C590, 0x7976033A39F7D952,
0xA4EC0132764CA04B, 0x733EA705FAE4FA77, 0xB4D8F77BC3E56167, 0x9E21F4F903B33FD9,
0x9D765E419FB69F6D, 0xD30C088BA61EA5EF, 0x5D94337FBFAF7F5B, 0x1A4E4822EB4D7A59,
0x6FFE73E81B637FB3, 0xDDF957BC36D8B9CA, 0x64D0E29EEA8838B3, 0x08DD9BDFD96B9F63,
0x087E79E5A57D1D13, 0xE328E230E3E2B3FB, 0x1C2559E30F0946BE, 0x720BF5F26F4D2EAA,
0xB0774D261CC609DB, 0x443F64EC5A371195, 0x4112CF68649A260E, 0xD813F2FAB7F5C5CA,
0x660D3257380841EE, 0x59AC2C7873F910A3, 0xE846963877671A17, 0x93B633ABFA3469F8,
0xC0C0F5A60EF4CDCF, 0xCAF21ECD4377B28C, 0x57277707199B8175, 0x506C11B9D90E8B1D,
0xD83CC2687A19255F, 0x4A29C6465A314CD1, 0xED2DF21216235097, 0xB5635C95FF7296E2,
0x22AF003AB672E811, 0x52E762596BF68235, 0x9AEBA33AC6ECC6B0, 0x944F6DE09134DFB6,
0x6C47BEC883A7DE39, 0x6AD047C430A12104, 0xA5B1CFDBA0AB4067, 0x7C45D833AFF07862,
0x5092EF950A16DA0B, 0x9338E69C052B8E7B, 0x455A4B4CFE30E3F5, 0x6B02E63195AD0CF8,
0x6B17B224BAD6BF27, 0xD1E0CCD25BB9C169, 0xDE0C89A556B9AE70, 0x50065E535A213CF6,
0x9C1169FA2777B874, 0x78EDEFD694AF1EED, 0x6DC93D9526A50E68, 0xEE97F453F06791ED,
0x32AB0EDB696703D3, 0x3A6853C7E70757A7, 0x31865CED6120F37D, 0x67FEF95D92607890,
0x1F2B1D1F15F6DC9C, 0xB69E38A8965C6B65, 0xAA9119FF184CCCF4, 0xF43C732873F24C13,
0xFB4A3D794A9A80D2, 0x3550C2321FD6109C, 0x371F77E76BB8417E, 0x6BFA9AAE5EC05779,
0xCD04F3FF001A4778, 0xE3273522064480CA, 0x9F91508BFFCFC14A, 0x049A7F41061A9E60,
0xFCB6BE43A9F2FE9B, 0x08DE8A1C7797DA9B, 0x8F9887E6078735A1, 0xB5B4071DBFC73A66,
0x230E343DFBA08D33, 0x43ED7F5A0FAE657D, 0x3A88A0FBBCB05C63, 0x21874B8B4D2DBC4F,
0x1BDEA12E35F6A8C9, 0x53C065C6C8E63528, 0xE34A1D250E7A8D6B, 0xD6B04D3B7651DD7E,
0x5E90277E7CB39E2D, 0x2C046F22062DC67D, 0xB10BB459132D0A26, 0x3FA9DDFB67E2F199,
0x0E09B88E1914F7AF, 0x10E8B35AF3EEAB37, 0x9EEDECA8E272B933, 0xD4C718BC4AE8AE5F,
0x81536D601170FC20, 0x91B534F885818A06, 0xEC8177F83F900978, 0x190E714FADA5156E,
0xB592BF39B0364963, 0x89C350C893AE7DC1, 0xAC042E70F8B383F2, 0xB49B52E587A1EE60,
0xFB152FE3FF26DA89, 0x3E666E6F69AE2C15, 0x3B544EBE544C19F9, 0xE805A1E290CF2456,
0x24B33C9D7ED25117, 0xE74733427B72F0C1, 0x0A804D18B7097475, 0x57E3306D881EDB4F,
0x4AE7D6A36EB5DBCB, 0x2D8D5432157064C8, 0xD1E649DE1E7F268B, 0x8A328A1CEDFE552C,
0x07A3AEC79624C7DA, 0x84547DDC3E203C94, 0x990A98FD5071D263, 0x1A4FF12616EEFC89,
0xF6F7FD1431714200, 0x30C05B1BA332F41C, 0x8D2636B81555A786, 0x46C9FEB55D120902,
0xCCEC0A73B49C9921, 0x4E9D2827355FC492, 0x19EBB029435DCB0F, 0x4659D2B743848A2C,
0x963EF2C96B33BE31, 0x74F85198B05A2E7D, 0x5A0F544DD2B1FB18, 0x03727073C2E134B1,
0xC7F6AA2DE59AEA61, 0x352787BAA0D7C22F, 0x9853EAB63B5E0B35, 0xABBDCDD7ED5C0860,
0xCF05DAF5AC8D77B0, 0x49CAD48CEBF4A71E, 0x7A4C10EC2158C4A6, 0xD9E92AA246BF719E,
0x13AE978D09FE5557, 0x730499AF921549FF, 0x4E4B705B92903BA4, 0xFF577222C14F0A3A,
0x55B6344CF97AAFAE, 0xB862225B055B6960, 0xCAC09AFBDDD2CDB4, 0xDAF8E9829FE96B5F,
0xB5FDFC5D3132C498, 0x310CB380DB6F7503, 0xE87FBB46217A360E, 0x2102AE466EBB1148,
0xF8549E1A3AA5E00D, 0x07A69AFDCC42261A, 0xC4C118BFE78FEAAE, 0xF9F4892ED96BD438,
0x1AF3DBE25D8F45DA, 0xF5B4B0B0D2DEEEB4, 0x962ACEEFA82E1C84, 0x046E3ECAAF453CE9,
0xF05D129681949A4C, 0x964781CE734B3C84, 0x9C2ED44081CE5FBD, 0x522E23F3925E319E,
0x177E00F9FC32F791, 0x2BC60A63A6F3B3F2, 0x222BBFAE61725606, 0x486289DDCC3D6780,
0x7DC7785B8EFDFC80, 0x8AF38731C02BA980, 0x1FAB64EA29A2DDF7, 0xE4D9429322CD065A,
0x9DA058C67844F20C, 0x24C0E332B70019B0, 0x233003B5A6CFE6AD, 0xD586BD01C5C217F6,
0x5E5637885F29BC2B, 0x7EBA726D8C94094B, 0x0A56A5F0BFE39272, 0xD79476A84EE20D06,
0x9E4C1269BAA4BF37, 0x17EFEE45B0DEE640, 0x1D95B0A5FCF90BC6, 0x93CBE0B699C2585D,
0x65FA4F227A2B6D79, 0xD5F9E858292504D5, 0xC2B5A03F71471A6F, 0x59300222B4561E00,
0xCE2F8642CA0712DC, 0x7CA9723FBB2E8988, 0x2785338347F2BA08, 0xC61BB3A141E50E8C,
0x150F361DAB9DEC26, 0x9F6A419D382595F4, 0x64A53DC924FE7AC9, 0x142DE49FFF7A7C3D,
0x0C335248857FA9E7, 0x0A9C32D5EAE45305, 0xE6C42178C4BBB92E, 0x71F1CE2490D20B07,
0xF1BCC3D275AFE51A, 0xE728E8C83C334074, 0x96FBF83A12884624, 0x81A1549FD6573DA5,
0x5FA7867CAF35E149, 0x56986E2EF3ED091B, 0x917F1DD5F8886C61, 0xD20D8C88C8FFE65F,
0x31D71DCE64B2C310, 0xF165B587DF898190, 0xA57E6339DD2CF3A0, 0x1EF6E6DBB1961EC9,
0x70CC73D90BC26E24, 0xE21A6B35DF0C3AD7, 0x003A93D8B2806962, 0x1C99DED33CB890A1,
0xCF3145DE0ADD4289, 0xD0E4427A5514FB72, 0x77C621CC9FB3A483, 0x67A34DAC4356550B,
0xF8D626AAAF278509
]
class ZobristHasher:
def __init__(self, array: List[int]) -> None:
assert len(array) >= 781
self.array = array
def hash_board(self, board: chess.BaseBoard) -> int:
zobrist_hash = 0
for pivot, squares in enumerate(board.occupied_co):
for square in chess.scan_reversed(squares):
piece_index = (typing.cast(chess.PieceType, board.piece_type_at(square)) - 1) * 2 + pivot
zobrist_hash ^= self.array[64 * piece_index + square]
return zobrist_hash
def hash_castling(self, board: chess.Board) -> int:
zobrist_hash = 0
# Hash in the castling flags.
if board.has_kingside_castling_rights(chess.WHITE):
zobrist_hash ^= self.array[768]
if board.has_queenside_castling_rights(chess.WHITE):
zobrist_hash ^= self.array[768 + 1]
if board.has_kingside_castling_rights(chess.BLACK):
zobrist_hash ^= self.array[768 + 2]
if board.has_queenside_castling_rights(chess.BLACK):
zobrist_hash ^= self.array[768 + 3]
return zobrist_hash
def hash_ep_square(self, board: chess.Board) -> int:
# Hash in the en passant file.
if board.ep_square:
# But only if there's actually a pawn ready to capture it. Legality
# of the potential capture is irrelevant.
if board.turn == chess.WHITE:
ep_mask = chess.shift_down(chess.BB_SQUARES[board.ep_square])
else:
ep_mask = chess.shift_up(chess.BB_SQUARES[board.ep_square])
ep_mask = chess.shift_left(ep_mask) | chess.shift_right(ep_mask)
if ep_mask & board.pawns & board.occupied_co[board.turn]:
return self.array[772 + chess.square_file(board.ep_square)]
return 0
def hash_turn(self, board: chess.Board) -> int:
# Hash in the turn.
return self.array[780] if board.turn == chess.WHITE else 0
def __call__(self, board: chess.Board) -> int:
return (self.hash_board(board) ^ self.hash_castling(board) ^
self.hash_ep_square(board) ^ self.hash_turn(board))
def zobrist_hash(board: chess.Board, *, _hasher: Callable[[chess.Board], int] = ZobristHasher(POLYGLOT_RANDOM_ARRAY)) -> int:
"""
Calculates the Polyglot Zobrist hash of the position.
A Zobrist hash is an XOR of pseudo-random values picked from
an array. Which values are picked is decided by features of the
position, such as piece positions, castling rights and en passant
squares.
"""
return _hasher(board)
class Entry(NamedTuple):
"""An entry from a Polyglot opening book."""
key: int
"""The Zobrist hash of the position."""
raw_move: int
"""
The raw binary representation of the move. Use
:data:`~chess.polyglot.Entry.move` instead.
"""
weight: int
"""An integer value that can be used as the weight for this entry."""
learn: int
"""Another integer value that can be used for extra information."""
move: chess.Move
"""The :class:`~chess.Move`."""
class _EmptyMmap(bytearray):
def size(self) -> int:
return 0
def close(self) -> None:
pass
def _randint(rng: Optional[random.Random], a: int, b: int) -> int:
return random.randint(a, b) if rng is None else rng.randint(a, b)
class MemoryMappedReader:
"""Maps a Polyglot opening book to memory."""
def __init__(self, filename: PathLike) -> None:
fd = os.open(filename, os.O_RDONLY | os.O_BINARY if hasattr(os, "O_BINARY") else os.O_RDONLY)
try:
self.mmap: Union[mmap.mmap, _EmptyMmap] = mmap.mmap(fd, 0, access=mmap.ACCESS_READ)
except (ValueError, OSError):
self.mmap = _EmptyMmap() # Workaround for empty opening books.
finally:
os.close(fd)
if self.mmap.size() % ENTRY_STRUCT.size != 0:
raise IOError(f"invalid file size: ensure {filename!r} is a valid polyglot opening book")
try:
# Python 3.8
self.mmap.madvise(mmap.MADV_RANDOM) # type: ignore
except AttributeError:
pass
def __enter__(self) -> MemoryMappedReader:
return self
def __exit__(self, exc_type: Optional[Type[BaseException]], exc_value: Optional[BaseException], traceback: Optional[TracebackType]) -> None:
return self.close()
def __len__(self) -> int:
return self.mmap.size() // ENTRY_STRUCT.size
def __getitem__(self, index: int) -> Entry:
if index < 0:
index = len(self) + index
try:
key, raw_move, weight, learn = ENTRY_STRUCT.unpack_from(self.mmap, index * ENTRY_STRUCT.size)
except struct.error:
raise IndexError()
# Extract source and target square.
to_square = raw_move & 0x3f
from_square = (raw_move >> 6) & 0x3f
# Extract the promotion type.
promotion_part = (raw_move >> 12) & 0x7
promotion = promotion_part + 1 if promotion_part else None
# Piece drop.
if from_square == to_square:
promotion, drop = None, promotion
else:
drop = None
# Entry with move (not normalized).
move = chess.Move(from_square, to_square, promotion, drop)
return Entry(key, raw_move, weight, learn, move)
def __iter__(self) -> Iterator[Entry]:
for i in range(len(self)):
yield self[i]
def bisect_key_left(self, key: int) -> int:
lo = 0
hi = len(self)
while lo < hi:
mid = (lo + hi) // 2
mid_key, _, _, _ = ENTRY_STRUCT.unpack_from(self.mmap, mid * ENTRY_STRUCT.size)
if mid_key < key:
lo = mid + 1
else:
hi = mid
return lo
def __contains__(self, entry: Entry) -> bool:
return any(current == entry for current in self.find_all(entry.key, minimum_weight=entry.weight))
def find_all(self, board: Union[chess.Board, int], *, minimum_weight: int = 1, exclude_moves: Container[chess.Move] = []) -> Iterator[Entry]:
"""Seeks a specific position and yields corresponding entries."""
try:
key = int(board) # type: ignore
context: Optional[chess.Board] = None
except (TypeError, ValueError):
context = typing.cast(chess.Board, board)
key = zobrist_hash(context)
i = self.bisect_key_left(key)
size = len(self)
while i < size:
entry = self[i]
i += 1
if entry.key != key:
break
if entry.weight < minimum_weight:
continue
if context:
move = context._from_chess960(context.chess960, entry.move.from_square, entry.move.to_square, entry.move.promotion, entry.move.drop)
entry = Entry(entry.key, entry.raw_move, entry.weight, entry.learn, move)
if exclude_moves and entry.move in exclude_moves:
continue
if context and not context.is_legal(entry.move):
continue
yield entry
def find(self, board: Union[chess.Board, int], *, minimum_weight: int = 1, exclude_moves: Container[chess.Move] = []) -> Entry:
"""
Finds the main entry for the given position or Zobrist hash.
The main entry is the (first) entry with the highest weight.
By default, entries with weight ``0`` are excluded. This is a common
way to delete entries from an opening book without compacting it. Pass
*minimum_weight* ``0`` to select all entries.
:raises: :exc:`IndexError` if no entries are found. Use
:func:`~chess.polyglot.MemoryMappedReader.get()` if you prefer to
get ``None`` instead of an exception.
"""
try:
return max(self.find_all(board, minimum_weight=minimum_weight, exclude_moves=exclude_moves), key=lambda entry: entry.weight)
except ValueError:
raise IndexError()
def get(self, board: Union[chess.Board, int], default: Optional[Entry] = None, *, minimum_weight: int = 1, exclude_moves: Container[chess.Move] = []) -> Optional[Entry]:
try:
return self.find(board, minimum_weight=minimum_weight, exclude_moves=exclude_moves)
except IndexError:
return default
def choice(self, board: Union[chess.Board, int], *, minimum_weight: int = 1, exclude_moves: Container[chess.Move] = [], random: Optional[random.Random] = None) -> Entry:
"""
Uniformly selects a random entry for the given position.
:raises: :exc:`IndexError` if no entries are found.
"""
chosen_entry = None
for i, entry in enumerate(self.find_all(board, minimum_weight=minimum_weight, exclude_moves=exclude_moves)):
if chosen_entry is None or _randint(random, 0, i) == i:
chosen_entry = entry
if chosen_entry is None:
raise IndexError()
return chosen_entry
def weighted_choice(self, board: Union[chess.Board, int], *, exclude_moves: Container[chess.Move] = [], random: Optional[random.Random] = None) -> Entry:
"""
Selects a random entry for the given position, distributed by the
weights of the entries.
:raises: :exc:`IndexError` if no entries are found.
"""
total_weights = sum(entry.weight for entry in self.find_all(board, exclude_moves=exclude_moves))
if not total_weights:
raise IndexError()
choice = _randint(random, 0, total_weights - 1)
current_sum = 0
for entry in self.find_all(board, exclude_moves=exclude_moves):
current_sum += entry.weight
if current_sum > choice:
return entry
assert False
def close(self) -> None:
"""Closes the reader."""
self.mmap.close()
def open_reader(path: PathLike) -> MemoryMappedReader:
"""
Creates a reader for the file at the given path.
The following example opens a book to find all entries for the start
position:
>>> import chess
>>> import chess.polyglot
>>>
>>> board = chess.Board()
>>>
>>> with chess.polyglot.open_reader("data/polyglot/performance.bin") as reader:
... for entry in reader.find_all(board):
... print(entry.move, entry.weight, entry.learn)
e2e4 1 0
d2d4 1 0
c2c4 1 0
"""
return MemoryMappedReader(path)

View File

@@ -1,537 +0,0 @@
# This file is part of the python-chess library.
# Copyright (C) 2016-2021 Niklas Fiekas <niklas.fiekas@backscattering.de>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Piece vector graphics are copyright (C) Colin M.L. Burnett
# <https://en.wikipedia.org/wiki/User:Cburnett> and also licensed under the
# GNU General Public License.
from __future__ import annotations
import math
import xml.etree.ElementTree as ET
import chess
from typing import Dict, Iterable, Optional, Tuple, Union
from chess import Color, IntoSquareSet, Square
SQUARE_SIZE = 45
MARGIN = 20
PIECES = {
"b": """<g id="black-bishop" class="black bishop" fill="none" fill-rule="evenodd" stroke="#000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M9 36c3.39-.97 10.11.43 13.5-2 3.39 2.43 10.11 1.03 13.5 2 0 0 1.65.54 3 2-.68.97-1.65.99-3 .5-3.39-.97-10.11.46-13.5-1-3.39 1.46-10.11.03-13.5 1-1.354.49-2.323.47-3-.5 1.354-1.94 3-2 3-2zm6-4c2.5 2.5 12.5 2.5 15 0 .5-1.5 0-2 0-2 0-2.5-2.5-4-2.5-4 5.5-1.5 6-11.5-5-15.5-11 4-10.5 14-5 15.5 0 0-2.5 1.5-2.5 4 0 0-.5.5 0 2zM25 8a2.5 2.5 0 1 1-5 0 2.5 2.5 0 1 1 5 0z" fill="#000" stroke-linecap="butt"/><path d="M17.5 26h10M15 30h15m-7.5-14.5v5M20 18h5" stroke="#fff" stroke-linejoin="miter"/></g>""", # noqa: E501
"k": """<g id="black-king" class="black king" fill="none" fill-rule="evenodd" stroke="#000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M22.5 11.63V6" stroke-linejoin="miter"/><path d="M22.5 25s4.5-7.5 3-10.5c0 0-1-2.5-3-2.5s-3 2.5-3 2.5c-1.5 3 3 10.5 3 10.5" fill="#000" stroke-linecap="butt" stroke-linejoin="miter"/><path d="M11.5 37c5.5 3.5 15.5 3.5 21 0v-7s9-4.5 6-10.5c-4-6.5-13.5-3.5-16 4V27v-3.5c-3.5-7.5-13-10.5-16-4-3 6 5 10 5 10V37z" fill="#000"/><path d="M20 8h5" stroke-linejoin="miter"/><path d="M32 29.5s8.5-4 6.03-9.65C34.15 14 25 18 22.5 24.5l.01 2.1-.01-2.1C20 18 9.906 14 6.997 19.85c-2.497 5.65 4.853 9 4.853 9M11.5 30c5.5-3 15.5-3 21 0m-21 3.5c5.5-3 15.5-3 21 0m-21 3.5c5.5-3 15.5-3 21 0" stroke="#fff"/></g>""", # noqa: E501
"n": """<g id="black-knight" class="black knight" fill="none" fill-rule="evenodd" stroke="#000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M 22,10 C 32.5,11 38.5,18 38,39 L 15,39 C 15,30 25,32.5 23,18" style="fill:#000000; stroke:#000000;"/><path d="M 24,18 C 24.38,20.91 18.45,25.37 16,27 C 13,29 13.18,31.34 11,31 C 9.958,30.06 12.41,27.96 11,28 C 10,28 11.19,29.23 10,30 C 9,30 5.997,31 6,26 C 6,24 12,14 12,14 C 12,14 13.89,12.1 14,10.5 C 13.27,9.506 13.5,8.5 13.5,7.5 C 14.5,6.5 16.5,10 16.5,10 L 18.5,10 C 18.5,10 19.28,8.008 21,7 C 22,7 22,10 22,10" style="fill:#000000; stroke:#000000;"/><path d="M 9.5 25.5 A 0.5 0.5 0 1 1 8.5,25.5 A 0.5 0.5 0 1 1 9.5 25.5 z" style="fill:#ececec; stroke:#ececec;"/><path d="M 15 15.5 A 0.5 1.5 0 1 1 14,15.5 A 0.5 1.5 0 1 1 15 15.5 z" transform="matrix(0.866,0.5,-0.5,0.866,9.693,-5.173)" style="fill:#ececec; stroke:#ececec;"/><path d="M 24.55,10.4 L 24.1,11.85 L 24.6,12 C 27.75,13 30.25,14.49 32.5,18.75 C 34.75,23.01 35.75,29.06 35.25,39 L 35.2,39.5 L 37.45,39.5 L 37.5,39 C 38,28.94 36.62,22.15 34.25,17.66 C 31.88,13.17 28.46,11.02 25.06,10.5 L 24.55,10.4 z " style="fill:#ececec; stroke:none;"/></g>""", # noqa: E501
"p": """<g id="black-pawn" class="black pawn"><path d="M22.5 9c-2.21 0-4 1.79-4 4 0 .89.29 1.71.78 2.38C17.33 16.5 16 18.59 16 21c0 2.03.94 3.84 2.41 5.03-3 1.06-7.41 5.55-7.41 13.47h23c0-7.92-4.41-12.41-7.41-13.47 1.47-1.19 2.41-3 2.41-5.03 0-2.41-1.33-4.5-3.28-5.62.49-.67.78-1.49.78-2.38 0-2.21-1.79-4-4-4z" fill="#000" stroke="#000" stroke-width="1.5" stroke-linecap="round"/></g>""", # noqa: E501
"q": """<g id="black-queen" class="black queen" fill="#000" fill-rule="evenodd" stroke="#000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><g fill="#000" stroke="none"><circle cx="6" cy="12" r="2.75"/><circle cx="14" cy="9" r="2.75"/><circle cx="22.5" cy="8" r="2.75"/><circle cx="31" cy="9" r="2.75"/><circle cx="39" cy="12" r="2.75"/></g><path d="M9 26c8.5-1.5 21-1.5 27 0l2.5-12.5L31 25l-.3-14.1-5.2 13.6-3-14.5-3 14.5-5.2-13.6L14 25 6.5 13.5 9 26zM9 26c0 2 1.5 2 2.5 4 1 1.5 1 1 .5 3.5-1.5 1-1.5 2.5-1.5 2.5-1.5 1.5.5 2.5.5 2.5 6.5 1 16.5 1 23 0 0 0 1.5-1 0-2.5 0 0 .5-1.5-1-2.5-.5-2.5-.5-2 .5-3.5 1-2 2.5-2 2.5-4-8.5-1.5-18.5-1.5-27 0z" stroke-linecap="butt"/><path d="M11 38.5a35 35 1 0 0 23 0" fill="none" stroke-linecap="butt"/><path d="M11 29a35 35 1 0 1 23 0M12.5 31.5h20M11.5 34.5a35 35 1 0 0 22 0M10.5 37.5a35 35 1 0 0 24 0" fill="none" stroke="#fff"/></g>""", # noqa: E501
"r": """<g id="black-rook" class="black rook" fill="#000" fill-rule="evenodd" stroke="#000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M9 39h27v-3H9v3zM12.5 32l1.5-2.5h17l1.5 2.5h-20zM12 36v-4h21v4H12z" stroke-linecap="butt"/><path d="M14 29.5v-13h17v13H14z" stroke-linecap="butt" stroke-linejoin="miter"/><path d="M14 16.5L11 14h23l-3 2.5H14zM11 14V9h4v2h5V9h5v2h5V9h4v5H11z" stroke-linecap="butt"/><path d="M12 35.5h21M13 31.5h19M14 29.5h17M14 16.5h17M11 14h23" fill="none" stroke="#fff" stroke-width="1" stroke-linejoin="miter"/></g>""", # noqa: E501
"B": """<g id="white-bishop" class="white bishop" fill="none" fill-rule="evenodd" stroke="#000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><g fill="#fff" stroke-linecap="butt"><path d="M9 36c3.39-.97 10.11.43 13.5-2 3.39 2.43 10.11 1.03 13.5 2 0 0 1.65.54 3 2-.68.97-1.65.99-3 .5-3.39-.97-10.11.46-13.5-1-3.39 1.46-10.11.03-13.5 1-1.354.49-2.323.47-3-.5 1.354-1.94 3-2 3-2zM15 32c2.5 2.5 12.5 2.5 15 0 .5-1.5 0-2 0-2 0-2.5-2.5-4-2.5-4 5.5-1.5 6-11.5-5-15.5-11 4-10.5 14-5 15.5 0 0-2.5 1.5-2.5 4 0 0-.5.5 0 2zM25 8a2.5 2.5 0 1 1-5 0 2.5 2.5 0 1 1 5 0z"/></g><path d="M17.5 26h10M15 30h15m-7.5-14.5v5M20 18h5" stroke-linejoin="miter"/></g>""", # noqa: E501
"K": """<g id="white-king" class="white king" fill="none" fill-rule="evenodd" stroke="#000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M22.5 11.63V6M20 8h5" stroke-linejoin="miter"/><path d="M22.5 25s4.5-7.5 3-10.5c0 0-1-2.5-3-2.5s-3 2.5-3 2.5c-1.5 3 3 10.5 3 10.5" fill="#fff" stroke-linecap="butt" stroke-linejoin="miter"/><path d="M11.5 37c5.5 3.5 15.5 3.5 21 0v-7s9-4.5 6-10.5c-4-6.5-13.5-3.5-16 4V27v-3.5c-3.5-7.5-13-10.5-16-4-3 6 5 10 5 10V37z" fill="#fff"/><path d="M11.5 30c5.5-3 15.5-3 21 0m-21 3.5c5.5-3 15.5-3 21 0m-21 3.5c5.5-3 15.5-3 21 0"/></g>""", # noqa: E501
"N": """<g id="white-knight" class="white knight" fill="none" fill-rule="evenodd" stroke="#000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M 22,10 C 32.5,11 38.5,18 38,39 L 15,39 C 15,30 25,32.5 23,18" style="fill:#ffffff; stroke:#000000;"/><path d="M 24,18 C 24.38,20.91 18.45,25.37 16,27 C 13,29 13.18,31.34 11,31 C 9.958,30.06 12.41,27.96 11,28 C 10,28 11.19,29.23 10,30 C 9,30 5.997,31 6,26 C 6,24 12,14 12,14 C 12,14 13.89,12.1 14,10.5 C 13.27,9.506 13.5,8.5 13.5,7.5 C 14.5,6.5 16.5,10 16.5,10 L 18.5,10 C 18.5,10 19.28,8.008 21,7 C 22,7 22,10 22,10" style="fill:#ffffff; stroke:#000000;"/><path d="M 9.5 25.5 A 0.5 0.5 0 1 1 8.5,25.5 A 0.5 0.5 0 1 1 9.5 25.5 z" style="fill:#000000; stroke:#000000;"/><path d="M 15 15.5 A 0.5 1.5 0 1 1 14,15.5 A 0.5 1.5 0 1 1 15 15.5 z" transform="matrix(0.866,0.5,-0.5,0.866,9.693,-5.173)" style="fill:#000000; stroke:#000000;"/></g>""", # noqa: E501
"P": """<g id="white-pawn" class="white pawn"><path d="M22.5 9c-2.21 0-4 1.79-4 4 0 .89.29 1.71.78 2.38C17.33 16.5 16 18.59 16 21c0 2.03.94 3.84 2.41 5.03-3 1.06-7.41 5.55-7.41 13.47h23c0-7.92-4.41-12.41-7.41-13.47 1.47-1.19 2.41-3 2.41-5.03 0-2.41-1.33-4.5-3.28-5.62.49-.67.78-1.49.78-2.38 0-2.21-1.79-4-4-4z" fill="#fff" stroke="#000" stroke-width="1.5" stroke-linecap="round"/></g>""", # noqa: E501
"Q": """<g id="white-queen" class="white queen" fill="#fff" fill-rule="evenodd" stroke="#000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M8 12a2 2 0 1 1-4 0 2 2 0 1 1 4 0zM24.5 7.5a2 2 0 1 1-4 0 2 2 0 1 1 4 0zM41 12a2 2 0 1 1-4 0 2 2 0 1 1 4 0zM16 8.5a2 2 0 1 1-4 0 2 2 0 1 1 4 0zM33 9a2 2 0 1 1-4 0 2 2 0 1 1 4 0z"/><path d="M9 26c8.5-1.5 21-1.5 27 0l2-12-7 11V11l-5.5 13.5-3-15-3 15-5.5-14V25L7 14l2 12zM9 26c0 2 1.5 2 2.5 4 1 1.5 1 1 .5 3.5-1.5 1-1.5 2.5-1.5 2.5-1.5 1.5.5 2.5.5 2.5 6.5 1 16.5 1 23 0 0 0 1.5-1 0-2.5 0 0 .5-1.5-1-2.5-.5-2.5-.5-2 .5-3.5 1-2 2.5-2 2.5-4-8.5-1.5-18.5-1.5-27 0z" stroke-linecap="butt"/><path d="M11.5 30c3.5-1 18.5-1 22 0M12 33.5c6-1 15-1 21 0" fill="none"/></g>""", # noqa: E501
"R": """<g id="white-rook" class="white rook" fill="#fff" fill-rule="evenodd" stroke="#000" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M9 39h27v-3H9v3zM12 36v-4h21v4H12zM11 14V9h4v2h5V9h5v2h5V9h4v5" stroke-linecap="butt"/><path d="M34 14l-3 3H14l-3-3"/><path d="M31 17v12.5H14V17" stroke-linecap="butt" stroke-linejoin="miter"/><path d="M31 29.5l1.5 2.5h-20l1.5-2.5"/><path d="M11 14h23" fill="none" stroke-linejoin="miter"/></g>""", # noqa: E501
}
COORDS = {
"1": """<path d="M6.754 26.996h2.578v-8.898l-2.805.562v-1.437l2.79-.563h1.578v10.336h2.578v1.328h-6.72z"/>""", # noqa: E501
"2": """<path d="M8.195 26.996h5.508v1.328H6.297v-1.328q.898-.93 2.445-2.492 1.555-1.57 1.953-2.024.758-.851 1.055-1.437.305-.594.305-1.164 0-.93-.657-1.516-.648-.586-1.695-.586-.742 0-1.57.258-.82.258-1.758.781v-1.593q.953-.383 1.781-.578.828-.196 1.516-.196 1.812 0 2.89.906 1.079.907 1.079 2.422 0 .72-.274 1.368-.265.64-.976 1.515-.196.227-1.243 1.313-1.046 1.078-2.953 3.023z"/>""", # noqa: E501
"3": """<path d="M11.434 22.035q1.132.242 1.765 1.008.64.766.64 1.89 0 1.727-1.187 2.672-1.187.946-3.375.946-.734 0-1.515-.149-.774-.14-1.602-.43V26.45q.656.383 1.438.578.78.196 1.632.196 1.485 0 2.258-.586.782-.586.782-1.703 0-1.032-.727-1.61-.719-.586-2.008-.586h-1.36v-1.297h1.423q1.164 0 1.78-.46.618-.47.618-1.344 0-.899-.64-1.375-.633-.485-1.82-.485-.65 0-1.391.141-.743.14-1.633.437V16.95q.898-.25 1.68-.375.788-.125 1.484-.125 1.797 0 2.844.82 1.046.813 1.046 2.204 0 .968-.554 1.64-.555.664-1.578.922z"/>""", # noqa: E501
"4": """<path d="M11.016 18.035L7.03 24.262h3.985zm-.414-1.375h1.984v7.602h1.664v1.312h-1.664v2.75h-1.57v-2.75H5.75v-1.523z"/>""", # noqa: E501
"5": """<path d="M6.719 16.66h6.195v1.328h-4.75v2.86q.344-.118.688-.172.343-.063.687-.063 1.953 0 3.094 1.07 1.14 1.07 1.14 2.899 0 1.883-1.171 2.93-1.172 1.039-3.305 1.039-.735 0-1.5-.125-.758-.125-1.57-.375v-1.586q.703.383 1.453.57.75.188 1.586.188 1.351 0 2.14-.711.79-.711.79-1.93 0-1.219-.79-1.93-.789-.71-2.14-.71-.633 0-1.266.14-.625.14-1.281.438z"/>""", # noqa: E501
"6": """<path d="M10.137 21.863q-1.063 0-1.688.727-.617.726-.617 1.992 0 1.258.617 1.992.625.727 1.688.727 1.062 0 1.68-.727.624-.734.624-1.992 0-1.266-.625-1.992-.617-.727-1.68-.727zm3.133-4.945v1.437q-.594-.28-1.204-.43-.601-.148-1.195-.148-1.562 0-2.39 1.055-.82 1.055-.938 3.188.46-.68 1.156-1.04.696-.367 1.531-.367 1.758 0 2.774 1.07 1.023 1.063 1.023 2.899 0 1.797-1.062 2.883-1.063 1.086-2.828 1.086-2.024 0-3.094-1.547-1.07-1.555-1.07-4.5 0-2.766 1.312-4.406 1.313-1.649 3.524-1.649.593 0 1.195.117.61.118 1.266.352z"/>""", # noqa: E501
"7": """<path d="M6.25 16.66h7.5v.672L9.516 28.324H7.867l3.985-10.336H6.25z"/>""", # noqa: E501
"8": """<path d="M10 22.785q-1.125 0-1.773.602-.641.601-.641 1.656t.64 1.656q.649.602 1.774.602t1.773-.602q.649-.61.649-1.656 0-1.055-.649-1.656-.64-.602-1.773-.602zm-1.578-.672q-1.016-.25-1.586-.945-.563-.695-.563-1.695 0-1.399.993-2.211 1-.813 2.734-.813 1.742 0 2.734.813.993.812.993 2.21 0 1-.57 1.696-.563.695-1.571.945 1.14.266 1.773 1.04.641.773.641 1.89 0 1.695-1.04 2.602-1.03.906-2.96.906t-2.969-.906Q6 26.738 6 25.043q0-1.117.64-1.89.641-.774 1.782-1.04zm-.578-2.492q0 .906.562 1.414.57.508 1.594.508 1.016 0 1.586-.508.578-.508.578-1.414 0-.906-.578-1.414-.57-.508-1.586-.508-1.023 0-1.594.508-.562.508-.562 1.414z"/>""", # noqa: E501
"a": """<path d="M23.328 10.016q-1.742 0-2.414.398-.672.398-.672 1.36 0 .765.5 1.218.508.445 1.375.445 1.196 0 1.914-.843.727-.852.727-2.258v-.32zm2.867-.594v4.992h-1.437v-1.328q-.492.797-1.227 1.18-.734.375-1.797.375-1.343 0-2.14-.75-.79-.758-.79-2.024 0-1.476.985-2.226.992-.75 2.953-.75h2.016V8.75q0-.992-.656-1.531-.649-.547-1.829-.547-.75 0-1.46.18-.711.18-1.368.539V6.062q.79-.304 1.532-.453.742-.156 1.445-.156 1.898 0 2.836.984.937.985.937 2.985z"/>""", # noqa: E501
"b": """<path d="M24.922 10.047q0-1.586-.656-2.485-.649-.906-1.79-.906-1.14 0-1.796.906-.649.899-.649 2.485 0 1.586.649 2.492.656.898 1.797.898 1.14 0 1.789-.898.656-.906.656-2.492zm-4.89-3.055q.452-.781 1.14-1.156.695-.383 1.656-.383 1.594 0 2.586 1.266 1 1.265 1 3.328 0 2.062-1 3.328-.992 1.266-2.586 1.266-.96 0-1.656-.375-.688-.383-1.14-1.164v1.312h-1.446V2.258h1.445z"/>""", # noqa: E501
"c": """<path d="M25.96 6v1.344q-.608-.336-1.226-.5-.609-.172-1.234-.172-1.398 0-2.172.89-.773.883-.773 2.485 0 1.601.773 2.492.774.883 2.172.883.625 0 1.234-.164.618-.172 1.227-.508v1.328q-.602.281-1.25.422-.64.14-1.367.14-1.977 0-3.14-1.242-1.165-1.242-1.165-3.351 0-2.14 1.172-3.367 1.18-1.227 3.227-1.227.664 0 1.296.14.633.134 1.227.407z"/>""", # noqa: E501
"d": """<path d="M24.973 6.992V2.258h1.437v12.156h-1.437v-1.312q-.453.78-1.149 1.164-.687.375-1.656.375-1.586 0-2.586-1.266-.992-1.266-.992-3.328 0-2.063.992-3.328 1-1.266 2.586-1.266.969 0 1.656.383.696.375 1.149 1.156zm-4.899 3.055q0 1.586.649 2.492.656.898 1.797.898 1.14 0 1.796-.898.657-.906.657-2.492 0-1.586-.657-2.485-.656-.906-1.796-.906-1.141 0-1.797.906-.649.899-.649 2.485z"/>""", # noqa: E501
"e": """<path d="M26.555 9.68v.703h-6.61q.094 1.484.89 2.265.806.774 2.235.774.828 0 1.602-.203.781-.203 1.547-.61v1.36q-.774.328-1.586.5-.813.172-1.649.172-2.093 0-3.32-1.22-1.219-1.218-1.219-3.296 0-2.148 1.157-3.406 1.164-1.266 3.132-1.266 1.766 0 2.79 1.14 1.03 1.134 1.03 3.087zm-1.438-.422q-.015-1.18-.664-1.883-.64-.703-1.703-.703-1.203 0-1.93.68-.718.68-.828 1.914z"/>""", # noqa: E501
"f": """<path d="M25.285 2.258v1.195H23.91q-.773 0-1.078.313-.297.312-.297 1.125v.773h2.367v1.117h-2.367v7.633H21.09V6.781h-1.375V5.664h1.375v-.61q0-1.46.68-2.124.68-.672 2.156-.672z"/>""", # noqa: E501
"g": """<path d="M24.973 9.937q0-1.562-.649-2.421-.64-.86-1.804-.86-1.157 0-1.805.86-.64.859-.64 2.421 0 1.555.64 2.415.648.859 1.805.859 1.164 0 1.804-.86.649-.859.649-2.414zm1.437 3.391q0 2.234-.992 3.32-.992 1.094-3.04 1.094-.757 0-1.429-.117-.672-.11-1.304-.344v-1.398q.632.344 1.25.508.617.164 1.257.164 1.414 0 2.118-.743.703-.734.703-2.226v-.711q-.446.773-1.141 1.156-.695.383-1.664.383-1.61 0-2.594-1.227-.984-1.226-.984-3.25 0-2.03.984-3.257.985-1.227 2.594-1.227.969 0 1.664.383t1.14 1.156V5.664h1.438z"/>""", # noqa: E501
"h": """<path d="M26.164 9.133v5.281h-1.437V9.18q0-1.243-.485-1.86-.484-.617-1.453-.617-1.164 0-1.836.742-.672.742-.672 2.024v4.945h-1.445V2.258h1.445v4.765q.516-.789 1.211-1.18.703-.39 1.617-.39 1.508 0 2.282.938.773.93.773 2.742z"/>""", # noqa: E501
}
XX = """<g id="xx"><path d="M35.865 9.135a1.89 1.89 0 0 1 0 2.673L25.173 22.5l10.692 10.692a1.89 1.89 0 0 1 0 2.673 1.89 1.89 0 0 1-2.673 0L22.5 25.173 11.808 35.865a1.89 1.89 0 0 1-2.673 0 1.89 1.89 0 0 1 0-2.673L19.827 22.5 9.135 11.808a1.89 1.89 0 0 1 0-2.673 1.89 1.89 0 0 1 2.673 0L22.5 19.827 33.192 9.135a1.89 1.89 0 0 1 2.673 0z" fill="#000" stroke="#fff" stroke-width="1.688"/></g>""" # noqa: E501
CHECK_GRADIENT = """<radialGradient id="check_gradient" r="0.5"><stop offset="0%" stop-color="#ff0000" stop-opacity="1.0" /><stop offset="50%" stop-color="#e70000" stop-opacity="1.0" /><stop offset="100%" stop-color="#9e0000" stop-opacity="0.0" /></radialGradient>""" # noqa: E501
DEFAULT_COLORS = {
"square light": "#ffce9e",
"square dark": "#d18b47",
"square dark lastmove": "#aaa23b",
"square light lastmove": "#cdd16a",
"margin": "#212121",
"inner border": "#111",
"outer border": "#111",
"coord": "#e5e5e5",
"arrow green": "#15781B80",
"arrow red": "#88202080",
"arrow yellow": "#e68f00b3",
"arrow blue": "#00308880",
}
class Arrow:
"""Details of an arrow to be drawn."""
tail: Square
"""Start square of the arrow."""
head: Square
"""End square of the arrow."""
color: str
"""Arrow color."""
def __init__(self, tail: Square, head: Square, *, color: str = "green") -> None:
self.tail = tail
self.head = head
self.color = color
def pgn(self) -> str:
"""
Returns the arrow in the format used by ``[%csl ...]`` and
``[%cal ...]`` PGN annotations, e.g., ``Ga1`` or ``Ya2h2``.
Colors other than ``red``, ``yellow``, and ``blue`` default to green.
"""
if self.color == "red":
color = "R"
elif self.color == "yellow":
color = "Y"
elif self.color == "blue":
color = "B"
else:
color = "G"
if self.tail == self.head:
return f"{color}{chess.SQUARE_NAMES[self.tail]}"
else:
return f"{color}{chess.SQUARE_NAMES[self.tail]}{chess.SQUARE_NAMES[self.head]}"
def __str__(self) -> str:
return self.pgn()
def __repr__(self) -> str:
return f"Arrow({chess.SQUARE_NAMES[self.tail].upper()}, {chess.SQUARE_NAMES[self.head].upper()}, color={self.color!r})"
@classmethod
def from_pgn(cls, pgn: str) -> Arrow:
"""
Parses an arrow from the format used by ``[%csl ...]`` and
``[%cal ...]`` PGN annotations, e.g., ``Ga1`` or ``Ya2h2``.
Also allows skipping the color prefix, defaulting to green.
:raises: :exc:`ValueError` if the format is invalid.
"""
if pgn.startswith("G"):
color = "green"
pgn = pgn[1:]
elif pgn.startswith("R"):
color = "red"
pgn = pgn[1:]
elif pgn.startswith("Y"):
color = "yellow"
pgn = pgn[1:]
elif pgn.startswith("B"):
color = "blue"
pgn = pgn[1:]
else:
color = "green"
tail = chess.parse_square(pgn[:2])
head = chess.parse_square(pgn[2:]) if len(pgn) > 2 else tail
return cls(tail, head, color=color)
class SvgWrapper(str):
def _repr_svg_(self) -> SvgWrapper:
return self
def _svg(viewbox: int, size: Optional[int]) -> ET.Element:
svg = ET.Element("svg", {
"xmlns": "http://www.w3.org/2000/svg",
"xmlns:xlink": "http://www.w3.org/1999/xlink",
"viewBox": f"0 0 {viewbox:d} {viewbox:d}",
})
if size is not None:
svg.set("width", str(size))
svg.set("height", str(size))
return svg
def _attrs(attrs: Dict[str, Union[str, int, float, None]]) -> Dict[str, str]:
return {k: str(v) for k, v in attrs.items() if v is not None}
def _select_color(colors: Dict[str, str], color: str) -> Tuple[str, float]:
return _color(colors.get(color, DEFAULT_COLORS[color]))
def _color(color: str) -> Tuple[str, float]:
if color.startswith("#"):
try:
if len(color) == 5:
return color[:4], int(color[4], 16) / 0xf
elif len(color) == 9:
return color[:7], int(color[7:], 16) / 0xff
except ValueError:
pass # Ignore invalid hex value
return color, 1.0
def _coord(text: str, x: int, y: int, width: int, height: int, horizontal: bool, margin: int, *, color: str, opacity: float) -> ET.Element:
scale = margin / MARGIN
if horizontal:
x += int(width - scale * width) // 2
else:
y += int(height - scale * height) // 2
t = ET.Element("g", _attrs({
"transform": f"translate({x}, {y}) scale({scale}, {scale})",
"fill": color,
"stroke": color,
"opacity": opacity if opacity < 1.0 else None,
}))
t.append(ET.fromstring(COORDS[text]))
return t
def piece(piece: chess.Piece, size: Optional[int] = None) -> str:
"""
Renders the given :class:`chess.Piece` as an SVG image.
>>> import chess
>>> import chess.svg
>>>
>>> chess.svg.piece(chess.Piece.from_symbol("R")) # doctest: +SKIP
.. image:: ../docs/wR.svg
:alt: R
"""
svg = _svg(SQUARE_SIZE, size)
svg.append(ET.fromstring(PIECES[piece.symbol()]))
return SvgWrapper(ET.tostring(svg).decode("utf-8"))
def board(board: Optional[chess.BaseBoard] = None, *,
orientation: Color = chess.WHITE,
lastmove: Optional[chess.Move] = None,
check: Optional[Square] = None,
arrows: Iterable[Union[Arrow, Tuple[Square, Square]]] = [],
fill: Dict[Square, str] = {},
squares: Optional[IntoSquareSet] = None,
size: Optional[int] = None,
coordinates: bool = True,
colors: Dict[str, str] = {},
flipped: bool = False,
borders: bool = False,
style: Optional[str] = None) -> str:
"""
Renders a board with pieces and/or selected squares as an SVG image.
:param board: A :class:`chess.BaseBoard` for a chessboard with pieces, or
``None`` (the default) for a chessboard without pieces.
:param orientation: The point of view, defaulting to ``chess.WHITE``.
:param lastmove: A :class:`chess.Move` to be highlighted.
:param check: A square to be marked indicating a check.
:param arrows: A list of :class:`~chess.svg.Arrow` objects, like
``[chess.svg.Arrow(chess.E2, chess.E4)]``, or a list of tuples, like
``[(chess.E2, chess.E4)]``. An arrow from a square pointing to the same
square is drawn as a circle, like ``[(chess.E2, chess.E2)]``.
:param fill: A dictionary mapping squares to a colors that they should be
filled with.
:param squares: A :class:`chess.SquareSet` with selected squares to mark
with an X.
:param size: The size of the image in pixels (e.g., ``400`` for a 400 by
400 board), or ``None`` (the default) for no size limit.
:param coordinates: Pass ``False`` to disable the coordinate margin.
:param colors: A dictionary to override default colors. Possible keys are
``square light``, ``square dark``, ``square light lastmove``,
``square dark lastmove``, ``margin``, ``coord``, ``inner border``,
``outer border``, ``arrow green``, ``arrow blue``, ``arrow red``,
and ``arrow yellow``. Values should look like ``#ffce9e`` (opaque),
or ``#15781B80`` (transparent).
:param flipped: Pass ``True`` to flip the board.
:param borders: Pass ``True`` to enable a border around the board and,
(if *coordinates* is enabled) the coordinate margin.
:param style: A CSS stylesheet to include in the SVG image.
>>> import chess
>>> import chess.svg
>>>
>>> board = chess.Board("8/8/8/8/4N3/8/8/8 w - - 0 1")
>>>
>>> chess.svg.board(
... board,
... fill=dict.fromkeys(board.attacks(chess.E4), "#cc0000cc"),
... arrows=[chess.svg.Arrow(chess.E4, chess.F6, color="#0000cccc")],
... squares=chess.SquareSet(chess.BB_DARK_SQUARES & chess.BB_FILE_B),
... size=350,
... ) # doctest: +SKIP
.. image:: ../docs/Ne4.svg
:alt: 8/8/8/8/4N3/8/8/8
.. deprecated:: 1.1
Use *orientation* with a color instead of the *flipped* toggle.
"""
orientation ^= flipped
inner_border = 1 if borders and coordinates else 0
outer_border = 1 if borders else 0
margin = 15 if coordinates else 0
full_size = 2 * outer_border + 2 * margin + 2 * inner_border + 8 * SQUARE_SIZE
svg = _svg(full_size, size)
if style:
ET.SubElement(svg, "style").text = style
if board:
desc = ET.SubElement(svg, "desc")
asciiboard = ET.SubElement(desc, "pre")
asciiboard.text = str(board)
defs = ET.SubElement(svg, "defs")
if board:
for piece_color in chess.COLORS:
for piece_type in chess.PIECE_TYPES:
if board.pieces_mask(piece_type, piece_color):
defs.append(ET.fromstring(PIECES[chess.Piece(piece_type, piece_color).symbol()]))
squares = chess.SquareSet(squares) if squares else chess.SquareSet()
if squares:
defs.append(ET.fromstring(XX))
if check is not None:
defs.append(ET.fromstring(CHECK_GRADIENT))
if outer_border:
outer_border_color, outer_border_opacity = _select_color(colors, "outer border")
ET.SubElement(svg, "rect", _attrs({
"x": outer_border / 2,
"y": outer_border / 2,
"width": full_size - outer_border,
"height": full_size - outer_border,
"fill": "none",
"stroke": outer_border_color,
"stroke-width": outer_border,
"opacity": outer_border_opacity if outer_border_opacity < 1.0 else None,
}))
if margin:
margin_color, margin_opacity = _select_color(colors, "margin")
ET.SubElement(svg, "rect", _attrs({
"x": outer_border + margin / 2,
"y": outer_border + margin / 2,
"width": full_size - 2 * outer_border - margin,
"height": full_size - 2 * outer_border - margin,
"fill": "none",
"stroke": margin_color,
"stroke-width": margin,
"opacity": margin_opacity if margin_opacity < 1.0 else None,
}))
if inner_border:
inner_border_color, inner_border_opacity = _select_color(colors, "inner border")
ET.SubElement(svg, "rect", _attrs({
"x": outer_border + margin + inner_border / 2,
"y": outer_border + margin + inner_border / 2,
"width": full_size - 2 * outer_border - 2 * margin - inner_border,
"height": full_size - 2 * outer_border - 2 * margin - inner_border,
"fill": "none",
"stroke": inner_border_color,
"stroke-width": inner_border,
"opacity": inner_border_opacity if inner_border_opacity < 1.0 else None,
}))
# Render coordinates.
if coordinates:
coord_color, coord_opacity = _select_color(colors, "coord")
for file_index, file_name in enumerate(chess.FILE_NAMES):
x = (file_index if orientation else 7 - file_index) * SQUARE_SIZE + inner_border + margin + outer_border
# Keep some padding here to separate the ascender from the border
svg.append(_coord(file_name, x, 1, SQUARE_SIZE, margin, True, margin, color=coord_color, opacity=coord_opacity))
svg.append(_coord(file_name, x, full_size - outer_border - margin, SQUARE_SIZE, margin, True, margin, color=coord_color, opacity=coord_opacity))
for rank_index, rank_name in enumerate(chess.RANK_NAMES):
y = (7 - rank_index if orientation else rank_index) * SQUARE_SIZE + inner_border + margin + outer_border
svg.append(_coord(rank_name, 0, y, margin, SQUARE_SIZE, False, margin, color=coord_color, opacity=coord_opacity))
svg.append(_coord(rank_name, full_size - outer_border - margin, y, margin, SQUARE_SIZE, False, margin, color=coord_color, opacity=coord_opacity))
# Render board.
for square, bb in enumerate(chess.BB_SQUARES):
file_index = chess.square_file(square)
rank_index = chess.square_rank(square)
x = (file_index if orientation else 7 - file_index) * SQUARE_SIZE + inner_border + margin + outer_border
y = (7 - rank_index if orientation else rank_index) * SQUARE_SIZE + inner_border + margin + outer_border
cls = ["square", "light" if chess.BB_LIGHT_SQUARES & bb else "dark"]
if lastmove and square in [lastmove.from_square, lastmove.to_square]:
cls.append("lastmove")
square_color, square_opacity = _select_color(colors, " ".join(cls))
cls.append(chess.SQUARE_NAMES[square])
ET.SubElement(svg, "rect", _attrs({
"x": x,
"y": y,
"width": SQUARE_SIZE,
"height": SQUARE_SIZE,
"class": " ".join(cls),
"stroke": "none",
"fill": square_color,
"opacity": square_opacity if square_opacity < 1.0 else None,
}))
try:
fill_color, fill_opacity = _color(fill[square])
except KeyError:
pass
else:
ET.SubElement(svg, "rect", _attrs({
"x": x,
"y": y,
"width": SQUARE_SIZE,
"height": SQUARE_SIZE,
"stroke": "none",
"fill": fill_color,
"opacity": fill_opacity if fill_opacity < 1.0 else None,
}))
# Render check mark.
if check is not None:
file_index = chess.square_file(check)
rank_index = chess.square_rank(check)
x = (file_index if orientation else 7 - file_index) * SQUARE_SIZE + margin
y = (7 - rank_index if orientation else rank_index) * SQUARE_SIZE + margin
ET.SubElement(svg, "rect", _attrs({
"x": x,
"y": y,
"width": SQUARE_SIZE,
"height": SQUARE_SIZE,
"class": "check",
"fill": "url(#check_gradient)",
}))
# Render pieces and selected squares.
for square, bb in enumerate(chess.BB_SQUARES):
file_index = chess.square_file(square)
rank_index = chess.square_rank(square)
x = (file_index if orientation else 7 - file_index) * SQUARE_SIZE + margin
y = (7 - rank_index if orientation else rank_index) * SQUARE_SIZE + margin
if board is not None:
piece = board.piece_at(square)
if piece:
href = f"#{chess.COLOR_NAMES[piece.color]}-{chess.PIECE_NAMES[piece.piece_type]}"
ET.SubElement(svg, "use", {
"href": href,
"xlink:href": href,
"transform": f"translate({x:d}, {y:d})",
})
# Render selected squares.
if squares is not None and square in squares:
ET.SubElement(svg, "use", _attrs({
"href": "#xx",
"xlink:href": "#xx",
"x": x,
"y": y,
}))
# Render arrows.
for arrow in arrows:
try:
tail, head, color = arrow.tail, arrow.head, arrow.color # type: ignore
except AttributeError:
tail, head = arrow # type: ignore
color = "green"
try:
color, opacity = _select_color(colors, " ".join(["arrow", color]))
except KeyError:
opacity = 1.0
tail_file = chess.square_file(tail)
tail_rank = chess.square_rank(tail)
head_file = chess.square_file(head)
head_rank = chess.square_rank(head)
xtail = outer_border + margin + inner_border + (tail_file + 0.5 if orientation else 7.5 - tail_file) * SQUARE_SIZE
ytail = outer_border + margin + inner_border + (7.5 - tail_rank if orientation else tail_rank + 0.5) * SQUARE_SIZE
xhead = outer_border + margin + inner_border + (head_file + 0.5 if orientation else 7.5 - head_file) * SQUARE_SIZE
yhead = outer_border + margin + inner_border + (7.5 - head_rank if orientation else head_rank + 0.5) * SQUARE_SIZE
if (head_file, head_rank) == (tail_file, tail_rank):
ET.SubElement(svg, "circle", _attrs({
"cx": xhead,
"cy": yhead,
"r": SQUARE_SIZE * 0.9 / 2,
"stroke-width": SQUARE_SIZE * 0.1,
"stroke": color,
"opacity": opacity if opacity < 1.0 else None,
"fill": "none",
"class": "circle",
}))
else:
marker_size = 0.75 * SQUARE_SIZE
marker_margin = 0.1 * SQUARE_SIZE
dx, dy = xhead - xtail, yhead - ytail
hypot = math.hypot(dx, dy)
shaft_x = xhead - dx * (marker_size + marker_margin) / hypot
shaft_y = yhead - dy * (marker_size + marker_margin) / hypot
xtip = xhead - dx * marker_margin / hypot
ytip = yhead - dy * marker_margin / hypot
ET.SubElement(svg, "line", _attrs({
"x1": xtail,
"y1": ytail,
"x2": shaft_x,
"y2": shaft_y,
"stroke": color,
"opacity": opacity if opacity < 1.0 else None,
"stroke-width": SQUARE_SIZE * 0.2,
"stroke-linecap": "butt",
"class": "arrow",
}))
marker = [(xtip, ytip),
(shaft_x + dy * 0.5 * marker_size / hypot,
shaft_y - dx * 0.5 * marker_size / hypot),
(shaft_x - dy * 0.5 * marker_size / hypot,
shaft_y + dx * 0.5 * marker_size / hypot)]
ET.SubElement(svg, "polygon", _attrs({
"points": " ".join(f"{x},{y}" for x, y in marker),
"fill": color,
"opacity": opacity if opacity < 1.0 else None,
"class": "arrow",
}))
return SvgWrapper(ET.tostring(svg).decode("utf-8"))

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@@ -1 +0,0 @@
import os; var = 'SETUPTOOLS_USE_DISTUTILS'; enabled = os.environ.get(var, 'local') == 'local'; enabled and __import__('_distutils_hack').add_shim();

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@@ -1,20 +0,0 @@
Copyright (c) 2008-present The pip developers (see AUTHORS.txt file)
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

View File

@@ -1,88 +0,0 @@
Metadata-Version: 2.1
Name: pip
Version: 23.0.1
Summary: The PyPA recommended tool for installing Python packages.
Home-page: https://pip.pypa.io/
Author: The pip developers
Author-email: distutils-sig@python.org
License: MIT
Project-URL: Documentation, https://pip.pypa.io
Project-URL: Source, https://github.com/pypa/pip
Project-URL: Changelog, https://pip.pypa.io/en/stable/news/
Classifier: Development Status :: 5 - Production/Stable
Classifier: Intended Audience :: Developers
Classifier: License :: OSI Approved :: MIT License
Classifier: Topic :: Software Development :: Build Tools
Classifier: Programming Language :: Python
Classifier: Programming Language :: Python :: 3
Classifier: Programming Language :: Python :: 3 :: Only
Classifier: Programming Language :: Python :: 3.7
Classifier: Programming Language :: Python :: 3.8
Classifier: Programming Language :: Python :: 3.9
Classifier: Programming Language :: Python :: 3.10
Classifier: Programming Language :: Python :: 3.11
Classifier: Programming Language :: Python :: Implementation :: CPython
Classifier: Programming Language :: Python :: Implementation :: PyPy
Requires-Python: >=3.7
License-File: LICENSE.txt
pip - The Python Package Installer
==================================
.. image:: https://img.shields.io/pypi/v/pip.svg
:target: https://pypi.org/project/pip/
.. image:: https://readthedocs.org/projects/pip/badge/?version=latest
:target: https://pip.pypa.io/en/latest
pip is the `package installer`_ for Python. You can use pip to install packages from the `Python Package Index`_ and other indexes.
Please take a look at our documentation for how to install and use pip:
* `Installation`_
* `Usage`_
We release updates regularly, with a new version every 3 months. Find more details in our documentation:
* `Release notes`_
* `Release process`_
In pip 20.3, we've `made a big improvement to the heart of pip`_; `learn more`_. We want your input, so `sign up for our user experience research studies`_ to help us do it right.
**Note**: pip 21.0, in January 2021, removed Python 2 support, per pip's `Python 2 support policy`_. Please migrate to Python 3.
If you find bugs, need help, or want to talk to the developers, please use our mailing lists or chat rooms:
* `Issue tracking`_
* `Discourse channel`_
* `User IRC`_
If you want to get involved head over to GitHub to get the source code, look at our development documentation and feel free to jump on the developer mailing lists and chat rooms:
* `GitHub page`_
* `Development documentation`_
* `Development IRC`_
Code of Conduct
---------------
Everyone interacting in the pip project's codebases, issue trackers, chat
rooms, and mailing lists is expected to follow the `PSF Code of Conduct`_.
.. _package installer: https://packaging.python.org/guides/tool-recommendations/
.. _Python Package Index: https://pypi.org
.. _Installation: https://pip.pypa.io/en/stable/installation/
.. _Usage: https://pip.pypa.io/en/stable/
.. _Release notes: https://pip.pypa.io/en/stable/news.html
.. _Release process: https://pip.pypa.io/en/latest/development/release-process/
.. _GitHub page: https://github.com/pypa/pip
.. _Development documentation: https://pip.pypa.io/en/latest/development
.. _made a big improvement to the heart of pip: https://pyfound.blogspot.com/2020/11/pip-20-3-new-resolver.html
.. _learn more: https://pip.pypa.io/en/latest/user_guide/#changes-to-the-pip-dependency-resolver-in-20-3-2020
.. _sign up for our user experience research studies: https://pyfound.blogspot.com/2020/03/new-pip-resolver-to-roll-out-this-year.html
.. _Python 2 support policy: https://pip.pypa.io/en/latest/development/release-process/#python-2-support
.. _Issue tracking: https://github.com/pypa/pip/issues
.. _Discourse channel: https://discuss.python.org/c/packaging
.. _User IRC: https://kiwiirc.com/nextclient/#ircs://irc.libera.chat:+6697/pypa
.. _Development IRC: https://kiwiirc.com/nextclient/#ircs://irc.libera.chat:+6697/pypa-dev
.. _PSF Code of Conduct: https://github.com/pypa/.github/blob/main/CODE_OF_CONDUCT.md

View File

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pip/_vendor/urllib3/util/url.py,sha256=HLCLEKt8D-QMioTNbneZSzGTGyUkns4w_lSJP1UzE2E,14298
pip/_vendor/urllib3/util/wait.py,sha256=fOX0_faozG2P7iVojQoE1mbydweNyTcm-hXEfFrTtLI,5403
pip/_vendor/vendor.txt,sha256=3i3Zr7_kRDD9UEva0I8YOMroCZ8xuZ9OWd_Q4jmazqE,476
pip/_vendor/webencodings/__init__.py,sha256=qOBJIuPy_4ByYH6W_bNgJF-qYQ2DoU-dKsDu5yRWCXg,10579
pip/_vendor/webencodings/__pycache__/__init__.cpython-311.pyc,,
pip/_vendor/webencodings/__pycache__/labels.cpython-311.pyc,,
pip/_vendor/webencodings/__pycache__/mklabels.cpython-311.pyc,,
pip/_vendor/webencodings/__pycache__/tests.cpython-311.pyc,,
pip/_vendor/webencodings/__pycache__/x_user_defined.cpython-311.pyc,,
pip/_vendor/webencodings/labels.py,sha256=4AO_KxTddqGtrL9ns7kAPjb0CcN6xsCIxbK37HY9r3E,8979
pip/_vendor/webencodings/mklabels.py,sha256=GYIeywnpaLnP0GSic8LFWgd0UVvO_l1Nc6YoF-87R_4,1305
pip/_vendor/webencodings/tests.py,sha256=OtGLyjhNY1fvkW1GvLJ_FV9ZoqC9Anyjr7q3kxTbzNs,6563
pip/_vendor/webencodings/x_user_defined.py,sha256=yOqWSdmpytGfUgh_Z6JYgDNhoc-BAHyyeeT15Fr42tM,4307
pip/py.typed,sha256=EBVvvPRTn_eIpz5e5QztSCdrMX7Qwd7VP93RSoIlZ2I,286

View File

@@ -1,5 +0,0 @@
Wheel-Version: 1.0
Generator: bdist_wheel (0.38.4)
Root-Is-Purelib: true
Tag: py3-none-any

View File

@@ -1,4 +0,0 @@
[console_scripts]
pip = pip._internal.cli.main:main
pip3 = pip._internal.cli.main:main
pip3.11 = pip._internal.cli.main:main

View File

@@ -1,13 +0,0 @@
from typing import List, Optional
__version__ = "23.0.1"
def main(args: Optional[List[str]] = None) -> int:
"""This is an internal API only meant for use by pip's own console scripts.
For additional details, see https://github.com/pypa/pip/issues/7498.
"""
from pip._internal.utils.entrypoints import _wrapper
return _wrapper(args)

View File

@@ -1,31 +0,0 @@
import os
import sys
import warnings
# Remove '' and current working directory from the first entry
# of sys.path, if present to avoid using current directory
# in pip commands check, freeze, install, list and show,
# when invoked as python -m pip <command>
if sys.path[0] in ("", os.getcwd()):
sys.path.pop(0)
# If we are running from a wheel, add the wheel to sys.path
# This allows the usage python pip-*.whl/pip install pip-*.whl
if __package__ == "":
# __file__ is pip-*.whl/pip/__main__.py
# first dirname call strips of '/__main__.py', second strips off '/pip'
# Resulting path is the name of the wheel itself
# Add that to sys.path so we can import pip
path = os.path.dirname(os.path.dirname(__file__))
sys.path.insert(0, path)
if __name__ == "__main__":
# Work around the error reported in #9540, pending a proper fix.
# Note: It is essential the warning filter is set *before* importing
# pip, as the deprecation happens at import time, not runtime.
warnings.filterwarnings(
"ignore", category=DeprecationWarning, module=".*packaging\\.version"
)
from pip._internal.cli.main import main as _main
sys.exit(_main())

View File

@@ -1,50 +0,0 @@
"""Execute exactly this copy of pip, within a different environment.
This file is named as it is, to ensure that this module can't be imported via
an import statement.
"""
# /!\ This version compatibility check section must be Python 2 compatible. /!\
import sys
# Copied from setup.py
PYTHON_REQUIRES = (3, 7)
def version_str(version): # type: ignore
return ".".join(str(v) for v in version)
if sys.version_info[:2] < PYTHON_REQUIRES:
raise SystemExit(
"This version of pip does not support python {} (requires >={}).".format(
version_str(sys.version_info[:2]), version_str(PYTHON_REQUIRES)
)
)
# From here on, we can use Python 3 features, but the syntax must remain
# Python 2 compatible.
import runpy # noqa: E402
from importlib.machinery import PathFinder # noqa: E402
from os.path import dirname # noqa: E402
PIP_SOURCES_ROOT = dirname(dirname(__file__))
class PipImportRedirectingFinder:
@classmethod
def find_spec(self, fullname, path=None, target=None): # type: ignore
if fullname != "pip":
return None
spec = PathFinder.find_spec(fullname, [PIP_SOURCES_ROOT], target)
assert spec, (PIP_SOURCES_ROOT, fullname)
return spec
sys.meta_path.insert(0, PipImportRedirectingFinder())
assert __name__ == "__main__", "Cannot run __pip-runner__.py as a non-main module"
runpy.run_module("pip", run_name="__main__", alter_sys=True)

View File

@@ -1,19 +0,0 @@
from typing import List, Optional
import pip._internal.utils.inject_securetransport # noqa
from pip._internal.utils import _log
# init_logging() must be called before any call to logging.getLogger()
# which happens at import of most modules.
_log.init_logging()
def main(args: (Optional[List[str]]) = None) -> int:
"""This is preserved for old console scripts that may still be referencing
it.
For additional details, see https://github.com/pypa/pip/issues/7498.
"""
from pip._internal.utils.entrypoints import _wrapper
return _wrapper(args)

View File

@@ -1,311 +0,0 @@
"""Build Environment used for isolation during sdist building
"""
import logging
import os
import pathlib
import site
import sys
import textwrap
from collections import OrderedDict
from types import TracebackType
from typing import TYPE_CHECKING, Iterable, List, Optional, Set, Tuple, Type, Union
from pip._vendor.certifi import where
from pip._vendor.packaging.requirements import Requirement
from pip._vendor.packaging.version import Version
from pip import __file__ as pip_location
from pip._internal.cli.spinners import open_spinner
from pip._internal.locations import get_platlib, get_purelib, get_scheme
from pip._internal.metadata import get_default_environment, get_environment
from pip._internal.utils.subprocess import call_subprocess
from pip._internal.utils.temp_dir import TempDirectory, tempdir_kinds
if TYPE_CHECKING:
from pip._internal.index.package_finder import PackageFinder
logger = logging.getLogger(__name__)
def _dedup(a: str, b: str) -> Union[Tuple[str], Tuple[str, str]]:
return (a, b) if a != b else (a,)
class _Prefix:
def __init__(self, path: str) -> None:
self.path = path
self.setup = False
scheme = get_scheme("", prefix=path)
self.bin_dir = scheme.scripts
self.lib_dirs = _dedup(scheme.purelib, scheme.platlib)
def get_runnable_pip() -> str:
"""Get a file to pass to a Python executable, to run the currently-running pip.
This is used to run a pip subprocess, for installing requirements into the build
environment.
"""
source = pathlib.Path(pip_location).resolve().parent
if not source.is_dir():
# This would happen if someone is using pip from inside a zip file. In that
# case, we can use that directly.
return str(source)
return os.fsdecode(source / "__pip-runner__.py")
def _get_system_sitepackages() -> Set[str]:
"""Get system site packages
Usually from site.getsitepackages,
but fallback on `get_purelib()/get_platlib()` if unavailable
(e.g. in a virtualenv created by virtualenv<20)
Returns normalized set of strings.
"""
if hasattr(site, "getsitepackages"):
system_sites = site.getsitepackages()
else:
# virtualenv < 20 overwrites site.py without getsitepackages
# fallback on get_purelib/get_platlib.
# this is known to miss things, but shouldn't in the cases
# where getsitepackages() has been removed (inside a virtualenv)
system_sites = [get_purelib(), get_platlib()]
return {os.path.normcase(path) for path in system_sites}
class BuildEnvironment:
"""Creates and manages an isolated environment to install build deps"""
def __init__(self) -> None:
temp_dir = TempDirectory(kind=tempdir_kinds.BUILD_ENV, globally_managed=True)
self._prefixes = OrderedDict(
(name, _Prefix(os.path.join(temp_dir.path, name)))
for name in ("normal", "overlay")
)
self._bin_dirs: List[str] = []
self._lib_dirs: List[str] = []
for prefix in reversed(list(self._prefixes.values())):
self._bin_dirs.append(prefix.bin_dir)
self._lib_dirs.extend(prefix.lib_dirs)
# Customize site to:
# - ensure .pth files are honored
# - prevent access to system site packages
system_sites = _get_system_sitepackages()
self._site_dir = os.path.join(temp_dir.path, "site")
if not os.path.exists(self._site_dir):
os.mkdir(self._site_dir)
with open(
os.path.join(self._site_dir, "sitecustomize.py"), "w", encoding="utf-8"
) as fp:
fp.write(
textwrap.dedent(
"""
import os, site, sys
# First, drop system-sites related paths.
original_sys_path = sys.path[:]
known_paths = set()
for path in {system_sites!r}:
site.addsitedir(path, known_paths=known_paths)
system_paths = set(
os.path.normcase(path)
for path in sys.path[len(original_sys_path):]
)
original_sys_path = [
path for path in original_sys_path
if os.path.normcase(path) not in system_paths
]
sys.path = original_sys_path
# Second, add lib directories.
# ensuring .pth file are processed.
for path in {lib_dirs!r}:
assert not path in sys.path
site.addsitedir(path)
"""
).format(system_sites=system_sites, lib_dirs=self._lib_dirs)
)
def __enter__(self) -> None:
self._save_env = {
name: os.environ.get(name, None)
for name in ("PATH", "PYTHONNOUSERSITE", "PYTHONPATH")
}
path = self._bin_dirs[:]
old_path = self._save_env["PATH"]
if old_path:
path.extend(old_path.split(os.pathsep))
pythonpath = [self._site_dir]
os.environ.update(
{
"PATH": os.pathsep.join(path),
"PYTHONNOUSERSITE": "1",
"PYTHONPATH": os.pathsep.join(pythonpath),
}
)
def __exit__(
self,
exc_type: Optional[Type[BaseException]],
exc_val: Optional[BaseException],
exc_tb: Optional[TracebackType],
) -> None:
for varname, old_value in self._save_env.items():
if old_value is None:
os.environ.pop(varname, None)
else:
os.environ[varname] = old_value
def check_requirements(
self, reqs: Iterable[str]
) -> Tuple[Set[Tuple[str, str]], Set[str]]:
"""Return 2 sets:
- conflicting requirements: set of (installed, wanted) reqs tuples
- missing requirements: set of reqs
"""
missing = set()
conflicting = set()
if reqs:
env = (
get_environment(self._lib_dirs)
if hasattr(self, "_lib_dirs")
else get_default_environment()
)
for req_str in reqs:
req = Requirement(req_str)
# We're explicitly evaluating with an empty extra value, since build
# environments are not provided any mechanism to select specific extras.
if req.marker is not None and not req.marker.evaluate({"extra": ""}):
continue
dist = env.get_distribution(req.name)
if not dist:
missing.add(req_str)
continue
if isinstance(dist.version, Version):
installed_req_str = f"{req.name}=={dist.version}"
else:
installed_req_str = f"{req.name}==={dist.version}"
if not req.specifier.contains(dist.version, prereleases=True):
conflicting.add((installed_req_str, req_str))
# FIXME: Consider direct URL?
return conflicting, missing
def install_requirements(
self,
finder: "PackageFinder",
requirements: Iterable[str],
prefix_as_string: str,
*,
kind: str,
) -> None:
prefix = self._prefixes[prefix_as_string]
assert not prefix.setup
prefix.setup = True
if not requirements:
return
self._install_requirements(
get_runnable_pip(),
finder,
requirements,
prefix,
kind=kind,
)
@staticmethod
def _install_requirements(
pip_runnable: str,
finder: "PackageFinder",
requirements: Iterable[str],
prefix: _Prefix,
*,
kind: str,
) -> None:
args: List[str] = [
sys.executable,
pip_runnable,
"install",
"--ignore-installed",
"--no-user",
"--prefix",
prefix.path,
"--no-warn-script-location",
]
if logger.getEffectiveLevel() <= logging.DEBUG:
args.append("-v")
for format_control in ("no_binary", "only_binary"):
formats = getattr(finder.format_control, format_control)
args.extend(
(
"--" + format_control.replace("_", "-"),
",".join(sorted(formats or {":none:"})),
)
)
index_urls = finder.index_urls
if index_urls:
args.extend(["-i", index_urls[0]])
for extra_index in index_urls[1:]:
args.extend(["--extra-index-url", extra_index])
else:
args.append("--no-index")
for link in finder.find_links:
args.extend(["--find-links", link])
for host in finder.trusted_hosts:
args.extend(["--trusted-host", host])
if finder.allow_all_prereleases:
args.append("--pre")
if finder.prefer_binary:
args.append("--prefer-binary")
args.append("--")
args.extend(requirements)
extra_environ = {"_PIP_STANDALONE_CERT": where()}
with open_spinner(f"Installing {kind}") as spinner:
call_subprocess(
args,
command_desc=f"pip subprocess to install {kind}",
spinner=spinner,
extra_environ=extra_environ,
)
class NoOpBuildEnvironment(BuildEnvironment):
"""A no-op drop-in replacement for BuildEnvironment"""
def __init__(self) -> None:
pass
def __enter__(self) -> None:
pass
def __exit__(
self,
exc_type: Optional[Type[BaseException]],
exc_val: Optional[BaseException],
exc_tb: Optional[TracebackType],
) -> None:
pass
def cleanup(self) -> None:
pass
def install_requirements(
self,
finder: "PackageFinder",
requirements: Iterable[str],
prefix_as_string: str,
*,
kind: str,
) -> None:
raise NotImplementedError()

View File

@@ -1,293 +0,0 @@
"""Cache Management
"""
import hashlib
import json
import logging
import os
from pathlib import Path
from typing import Any, Dict, List, Optional, Set
from pip._vendor.packaging.tags import Tag, interpreter_name, interpreter_version
from pip._vendor.packaging.utils import canonicalize_name
from pip._internal.exceptions import InvalidWheelFilename
from pip._internal.models.direct_url import DirectUrl
from pip._internal.models.format_control import FormatControl
from pip._internal.models.link import Link
from pip._internal.models.wheel import Wheel
from pip._internal.utils.temp_dir import TempDirectory, tempdir_kinds
from pip._internal.utils.urls import path_to_url
logger = logging.getLogger(__name__)
ORIGIN_JSON_NAME = "origin.json"
def _hash_dict(d: Dict[str, str]) -> str:
"""Return a stable sha224 of a dictionary."""
s = json.dumps(d, sort_keys=True, separators=(",", ":"), ensure_ascii=True)
return hashlib.sha224(s.encode("ascii")).hexdigest()
class Cache:
"""An abstract class - provides cache directories for data from links
:param cache_dir: The root of the cache.
:param format_control: An object of FormatControl class to limit
binaries being read from the cache.
:param allowed_formats: which formats of files the cache should store.
('binary' and 'source' are the only allowed values)
"""
def __init__(
self, cache_dir: str, format_control: FormatControl, allowed_formats: Set[str]
) -> None:
super().__init__()
assert not cache_dir or os.path.isabs(cache_dir)
self.cache_dir = cache_dir or None
self.format_control = format_control
self.allowed_formats = allowed_formats
_valid_formats = {"source", "binary"}
assert self.allowed_formats.union(_valid_formats) == _valid_formats
def _get_cache_path_parts(self, link: Link) -> List[str]:
"""Get parts of part that must be os.path.joined with cache_dir"""
# We want to generate an url to use as our cache key, we don't want to
# just re-use the URL because it might have other items in the fragment
# and we don't care about those.
key_parts = {"url": link.url_without_fragment}
if link.hash_name is not None and link.hash is not None:
key_parts[link.hash_name] = link.hash
if link.subdirectory_fragment:
key_parts["subdirectory"] = link.subdirectory_fragment
# Include interpreter name, major and minor version in cache key
# to cope with ill-behaved sdists that build a different wheel
# depending on the python version their setup.py is being run on,
# and don't encode the difference in compatibility tags.
# https://github.com/pypa/pip/issues/7296
key_parts["interpreter_name"] = interpreter_name()
key_parts["interpreter_version"] = interpreter_version()
# Encode our key url with sha224, we'll use this because it has similar
# security properties to sha256, but with a shorter total output (and
# thus less secure). However the differences don't make a lot of
# difference for our use case here.
hashed = _hash_dict(key_parts)
# We want to nest the directories some to prevent having a ton of top
# level directories where we might run out of sub directories on some
# FS.
parts = [hashed[:2], hashed[2:4], hashed[4:6], hashed[6:]]
return parts
def _get_candidates(self, link: Link, canonical_package_name: str) -> List[Any]:
can_not_cache = not self.cache_dir or not canonical_package_name or not link
if can_not_cache:
return []
formats = self.format_control.get_allowed_formats(canonical_package_name)
if not self.allowed_formats.intersection(formats):
return []
candidates = []
path = self.get_path_for_link(link)
if os.path.isdir(path):
for candidate in os.listdir(path):
candidates.append((candidate, path))
return candidates
def get_path_for_link(self, link: Link) -> str:
"""Return a directory to store cached items in for link."""
raise NotImplementedError()
def get(
self,
link: Link,
package_name: Optional[str],
supported_tags: List[Tag],
) -> Link:
"""Returns a link to a cached item if it exists, otherwise returns the
passed link.
"""
raise NotImplementedError()
class SimpleWheelCache(Cache):
"""A cache of wheels for future installs."""
def __init__(self, cache_dir: str, format_control: FormatControl) -> None:
super().__init__(cache_dir, format_control, {"binary"})
def get_path_for_link(self, link: Link) -> str:
"""Return a directory to store cached wheels for link
Because there are M wheels for any one sdist, we provide a directory
to cache them in, and then consult that directory when looking up
cache hits.
We only insert things into the cache if they have plausible version
numbers, so that we don't contaminate the cache with things that were
not unique. E.g. ./package might have dozens of installs done for it
and build a version of 0.0...and if we built and cached a wheel, we'd
end up using the same wheel even if the source has been edited.
:param link: The link of the sdist for which this will cache wheels.
"""
parts = self._get_cache_path_parts(link)
assert self.cache_dir
# Store wheels within the root cache_dir
return os.path.join(self.cache_dir, "wheels", *parts)
def get(
self,
link: Link,
package_name: Optional[str],
supported_tags: List[Tag],
) -> Link:
candidates = []
if not package_name:
return link
canonical_package_name = canonicalize_name(package_name)
for wheel_name, wheel_dir in self._get_candidates(link, canonical_package_name):
try:
wheel = Wheel(wheel_name)
except InvalidWheelFilename:
continue
if canonicalize_name(wheel.name) != canonical_package_name:
logger.debug(
"Ignoring cached wheel %s for %s as it "
"does not match the expected distribution name %s.",
wheel_name,
link,
package_name,
)
continue
if not wheel.supported(supported_tags):
# Built for a different python/arch/etc
continue
candidates.append(
(
wheel.support_index_min(supported_tags),
wheel_name,
wheel_dir,
)
)
if not candidates:
return link
_, wheel_name, wheel_dir = min(candidates)
return Link(path_to_url(os.path.join(wheel_dir, wheel_name)))
class EphemWheelCache(SimpleWheelCache):
"""A SimpleWheelCache that creates it's own temporary cache directory"""
def __init__(self, format_control: FormatControl) -> None:
self._temp_dir = TempDirectory(
kind=tempdir_kinds.EPHEM_WHEEL_CACHE,
globally_managed=True,
)
super().__init__(self._temp_dir.path, format_control)
class CacheEntry:
def __init__(
self,
link: Link,
persistent: bool,
):
self.link = link
self.persistent = persistent
self.origin: Optional[DirectUrl] = None
origin_direct_url_path = Path(self.link.file_path).parent / ORIGIN_JSON_NAME
if origin_direct_url_path.exists():
self.origin = DirectUrl.from_json(origin_direct_url_path.read_text())
class WheelCache(Cache):
"""Wraps EphemWheelCache and SimpleWheelCache into a single Cache
This Cache allows for gracefully degradation, using the ephem wheel cache
when a certain link is not found in the simple wheel cache first.
"""
def __init__(
self, cache_dir: str, format_control: Optional[FormatControl] = None
) -> None:
if format_control is None:
format_control = FormatControl()
super().__init__(cache_dir, format_control, {"binary"})
self._wheel_cache = SimpleWheelCache(cache_dir, format_control)
self._ephem_cache = EphemWheelCache(format_control)
def get_path_for_link(self, link: Link) -> str:
return self._wheel_cache.get_path_for_link(link)
def get_ephem_path_for_link(self, link: Link) -> str:
return self._ephem_cache.get_path_for_link(link)
def get(
self,
link: Link,
package_name: Optional[str],
supported_tags: List[Tag],
) -> Link:
cache_entry = self.get_cache_entry(link, package_name, supported_tags)
if cache_entry is None:
return link
return cache_entry.link
def get_cache_entry(
self,
link: Link,
package_name: Optional[str],
supported_tags: List[Tag],
) -> Optional[CacheEntry]:
"""Returns a CacheEntry with a link to a cached item if it exists or
None. The cache entry indicates if the item was found in the persistent
or ephemeral cache.
"""
retval = self._wheel_cache.get(
link=link,
package_name=package_name,
supported_tags=supported_tags,
)
if retval is not link:
return CacheEntry(retval, persistent=True)
retval = self._ephem_cache.get(
link=link,
package_name=package_name,
supported_tags=supported_tags,
)
if retval is not link:
return CacheEntry(retval, persistent=False)
return None
@staticmethod
def record_download_origin(cache_dir: str, download_info: DirectUrl) -> None:
origin_path = Path(cache_dir) / ORIGIN_JSON_NAME
if origin_path.is_file():
origin = DirectUrl.from_json(origin_path.read_text())
# TODO: use DirectUrl.equivalent when https://github.com/pypa/pip/pull/10564
# is merged.
if origin.url != download_info.url:
logger.warning(
"Origin URL %s in cache entry %s does not match download URL %s. "
"This is likely a pip bug or a cache corruption issue.",
origin.url,
cache_dir,
download_info.url,
)
origin_path.write_text(download_info.to_json(), encoding="utf-8")

View File

@@ -1,4 +0,0 @@
"""Subpackage containing all of pip's command line interface related code
"""
# This file intentionally does not import submodules

View File

@@ -1,171 +0,0 @@
"""Logic that powers autocompletion installed by ``pip completion``.
"""
import optparse
import os
import sys
from itertools import chain
from typing import Any, Iterable, List, Optional
from pip._internal.cli.main_parser import create_main_parser
from pip._internal.commands import commands_dict, create_command
from pip._internal.metadata import get_default_environment
def autocomplete() -> None:
"""Entry Point for completion of main and subcommand options."""
# Don't complete if user hasn't sourced bash_completion file.
if "PIP_AUTO_COMPLETE" not in os.environ:
return
cwords = os.environ["COMP_WORDS"].split()[1:]
cword = int(os.environ["COMP_CWORD"])
try:
current = cwords[cword - 1]
except IndexError:
current = ""
parser = create_main_parser()
subcommands = list(commands_dict)
options = []
# subcommand
subcommand_name: Optional[str] = None
for word in cwords:
if word in subcommands:
subcommand_name = word
break
# subcommand options
if subcommand_name is not None:
# special case: 'help' subcommand has no options
if subcommand_name == "help":
sys.exit(1)
# special case: list locally installed dists for show and uninstall
should_list_installed = not current.startswith("-") and subcommand_name in [
"show",
"uninstall",
]
if should_list_installed:
env = get_default_environment()
lc = current.lower()
installed = [
dist.canonical_name
for dist in env.iter_installed_distributions(local_only=True)
if dist.canonical_name.startswith(lc)
and dist.canonical_name not in cwords[1:]
]
# if there are no dists installed, fall back to option completion
if installed:
for dist in installed:
print(dist)
sys.exit(1)
should_list_installables = (
not current.startswith("-") and subcommand_name == "install"
)
if should_list_installables:
for path in auto_complete_paths(current, "path"):
print(path)
sys.exit(1)
subcommand = create_command(subcommand_name)
for opt in subcommand.parser.option_list_all:
if opt.help != optparse.SUPPRESS_HELP:
for opt_str in opt._long_opts + opt._short_opts:
options.append((opt_str, opt.nargs))
# filter out previously specified options from available options
prev_opts = [x.split("=")[0] for x in cwords[1 : cword - 1]]
options = [(x, v) for (x, v) in options if x not in prev_opts]
# filter options by current input
options = [(k, v) for k, v in options if k.startswith(current)]
# get completion type given cwords and available subcommand options
completion_type = get_path_completion_type(
cwords,
cword,
subcommand.parser.option_list_all,
)
# get completion files and directories if ``completion_type`` is
# ``<file>``, ``<dir>`` or ``<path>``
if completion_type:
paths = auto_complete_paths(current, completion_type)
options = [(path, 0) for path in paths]
for option in options:
opt_label = option[0]
# append '=' to options which require args
if option[1] and option[0][:2] == "--":
opt_label += "="
print(opt_label)
else:
# show main parser options only when necessary
opts = [i.option_list for i in parser.option_groups]
opts.append(parser.option_list)
flattened_opts = chain.from_iterable(opts)
if current.startswith("-"):
for opt in flattened_opts:
if opt.help != optparse.SUPPRESS_HELP:
subcommands += opt._long_opts + opt._short_opts
else:
# get completion type given cwords and all available options
completion_type = get_path_completion_type(cwords, cword, flattened_opts)
if completion_type:
subcommands = list(auto_complete_paths(current, completion_type))
print(" ".join([x for x in subcommands if x.startswith(current)]))
sys.exit(1)
def get_path_completion_type(
cwords: List[str], cword: int, opts: Iterable[Any]
) -> Optional[str]:
"""Get the type of path completion (``file``, ``dir``, ``path`` or None)
:param cwords: same as the environmental variable ``COMP_WORDS``
:param cword: same as the environmental variable ``COMP_CWORD``
:param opts: The available options to check
:return: path completion type (``file``, ``dir``, ``path`` or None)
"""
if cword < 2 or not cwords[cword - 2].startswith("-"):
return None
for opt in opts:
if opt.help == optparse.SUPPRESS_HELP:
continue
for o in str(opt).split("/"):
if cwords[cword - 2].split("=")[0] == o:
if not opt.metavar or any(
x in ("path", "file", "dir") for x in opt.metavar.split("/")
):
return opt.metavar
return None
def auto_complete_paths(current: str, completion_type: str) -> Iterable[str]:
"""If ``completion_type`` is ``file`` or ``path``, list all regular files
and directories starting with ``current``; otherwise only list directories
starting with ``current``.
:param current: The word to be completed
:param completion_type: path completion type(``file``, ``path`` or ``dir``)
:return: A generator of regular files and/or directories
"""
directory, filename = os.path.split(current)
current_path = os.path.abspath(directory)
# Don't complete paths if they can't be accessed
if not os.access(current_path, os.R_OK):
return
filename = os.path.normcase(filename)
# list all files that start with ``filename``
file_list = (
x for x in os.listdir(current_path) if os.path.normcase(x).startswith(filename)
)
for f in file_list:
opt = os.path.join(current_path, f)
comp_file = os.path.normcase(os.path.join(directory, f))
# complete regular files when there is not ``<dir>`` after option
# complete directories when there is ``<file>``, ``<path>`` or
# ``<dir>``after option
if completion_type != "dir" and os.path.isfile(opt):
yield comp_file
elif os.path.isdir(opt):
yield os.path.join(comp_file, "")

View File

@@ -1,216 +0,0 @@
"""Base Command class, and related routines"""
import functools
import logging
import logging.config
import optparse
import os
import sys
import traceback
from optparse import Values
from typing import Any, Callable, List, Optional, Tuple
from pip._vendor.rich import traceback as rich_traceback
from pip._internal.cli import cmdoptions
from pip._internal.cli.command_context import CommandContextMixIn
from pip._internal.cli.parser import ConfigOptionParser, UpdatingDefaultsHelpFormatter
from pip._internal.cli.status_codes import (
ERROR,
PREVIOUS_BUILD_DIR_ERROR,
UNKNOWN_ERROR,
VIRTUALENV_NOT_FOUND,
)
from pip._internal.exceptions import (
BadCommand,
CommandError,
DiagnosticPipError,
InstallationError,
NetworkConnectionError,
PreviousBuildDirError,
UninstallationError,
)
from pip._internal.utils.filesystem import check_path_owner
from pip._internal.utils.logging import BrokenStdoutLoggingError, setup_logging
from pip._internal.utils.misc import get_prog, normalize_path
from pip._internal.utils.temp_dir import TempDirectoryTypeRegistry as TempDirRegistry
from pip._internal.utils.temp_dir import global_tempdir_manager, tempdir_registry
from pip._internal.utils.virtualenv import running_under_virtualenv
__all__ = ["Command"]
logger = logging.getLogger(__name__)
class Command(CommandContextMixIn):
usage: str = ""
ignore_require_venv: bool = False
def __init__(self, name: str, summary: str, isolated: bool = False) -> None:
super().__init__()
self.name = name
self.summary = summary
self.parser = ConfigOptionParser(
usage=self.usage,
prog=f"{get_prog()} {name}",
formatter=UpdatingDefaultsHelpFormatter(),
add_help_option=False,
name=name,
description=self.__doc__,
isolated=isolated,
)
self.tempdir_registry: Optional[TempDirRegistry] = None
# Commands should add options to this option group
optgroup_name = f"{self.name.capitalize()} Options"
self.cmd_opts = optparse.OptionGroup(self.parser, optgroup_name)
# Add the general options
gen_opts = cmdoptions.make_option_group(
cmdoptions.general_group,
self.parser,
)
self.parser.add_option_group(gen_opts)
self.add_options()
def add_options(self) -> None:
pass
def handle_pip_version_check(self, options: Values) -> None:
"""
This is a no-op so that commands by default do not do the pip version
check.
"""
# Make sure we do the pip version check if the index_group options
# are present.
assert not hasattr(options, "no_index")
def run(self, options: Values, args: List[str]) -> int:
raise NotImplementedError
def parse_args(self, args: List[str]) -> Tuple[Values, List[str]]:
# factored out for testability
return self.parser.parse_args(args)
def main(self, args: List[str]) -> int:
try:
with self.main_context():
return self._main(args)
finally:
logging.shutdown()
def _main(self, args: List[str]) -> int:
# We must initialize this before the tempdir manager, otherwise the
# configuration would not be accessible by the time we clean up the
# tempdir manager.
self.tempdir_registry = self.enter_context(tempdir_registry())
# Intentionally set as early as possible so globally-managed temporary
# directories are available to the rest of the code.
self.enter_context(global_tempdir_manager())
options, args = self.parse_args(args)
# Set verbosity so that it can be used elsewhere.
self.verbosity = options.verbose - options.quiet
level_number = setup_logging(
verbosity=self.verbosity,
no_color=options.no_color,
user_log_file=options.log,
)
# TODO: Try to get these passing down from the command?
# without resorting to os.environ to hold these.
# This also affects isolated builds and it should.
if options.no_input:
os.environ["PIP_NO_INPUT"] = "1"
if options.exists_action:
os.environ["PIP_EXISTS_ACTION"] = " ".join(options.exists_action)
if options.require_venv and not self.ignore_require_venv:
# If a venv is required check if it can really be found
if not running_under_virtualenv():
logger.critical("Could not find an activated virtualenv (required).")
sys.exit(VIRTUALENV_NOT_FOUND)
if options.cache_dir:
options.cache_dir = normalize_path(options.cache_dir)
if not check_path_owner(options.cache_dir):
logger.warning(
"The directory '%s' or its parent directory is not owned "
"or is not writable by the current user. The cache "
"has been disabled. Check the permissions and owner of "
"that directory. If executing pip with sudo, you should "
"use sudo's -H flag.",
options.cache_dir,
)
options.cache_dir = None
def intercepts_unhandled_exc(
run_func: Callable[..., int]
) -> Callable[..., int]:
@functools.wraps(run_func)
def exc_logging_wrapper(*args: Any) -> int:
try:
status = run_func(*args)
assert isinstance(status, int)
return status
except DiagnosticPipError as exc:
logger.error("[present-rich] %s", exc)
logger.debug("Exception information:", exc_info=True)
return ERROR
except PreviousBuildDirError as exc:
logger.critical(str(exc))
logger.debug("Exception information:", exc_info=True)
return PREVIOUS_BUILD_DIR_ERROR
except (
InstallationError,
UninstallationError,
BadCommand,
NetworkConnectionError,
) as exc:
logger.critical(str(exc))
logger.debug("Exception information:", exc_info=True)
return ERROR
except CommandError as exc:
logger.critical("%s", exc)
logger.debug("Exception information:", exc_info=True)
return ERROR
except BrokenStdoutLoggingError:
# Bypass our logger and write any remaining messages to
# stderr because stdout no longer works.
print("ERROR: Pipe to stdout was broken", file=sys.stderr)
if level_number <= logging.DEBUG:
traceback.print_exc(file=sys.stderr)
return ERROR
except KeyboardInterrupt:
logger.critical("Operation cancelled by user")
logger.debug("Exception information:", exc_info=True)
return ERROR
except BaseException:
logger.critical("Exception:", exc_info=True)
return UNKNOWN_ERROR
return exc_logging_wrapper
try:
if not options.debug_mode:
run = intercepts_unhandled_exc(self.run)
else:
run = self.run
rich_traceback.install(show_locals=True)
return run(options, args)
finally:
self.handle_pip_version_check(options)

View File

@@ -1,27 +0,0 @@
from contextlib import ExitStack, contextmanager
from typing import ContextManager, Generator, TypeVar
_T = TypeVar("_T", covariant=True)
class CommandContextMixIn:
def __init__(self) -> None:
super().__init__()
self._in_main_context = False
self._main_context = ExitStack()
@contextmanager
def main_context(self) -> Generator[None, None, None]:
assert not self._in_main_context
self._in_main_context = True
try:
with self._main_context:
yield
finally:
self._in_main_context = False
def enter_context(self, context_provider: ContextManager[_T]) -> _T:
assert self._in_main_context
return self._main_context.enter_context(context_provider)

View File

@@ -1,70 +0,0 @@
"""Primary application entrypoint.
"""
import locale
import logging
import os
import sys
from typing import List, Optional
from pip._internal.cli.autocompletion import autocomplete
from pip._internal.cli.main_parser import parse_command
from pip._internal.commands import create_command
from pip._internal.exceptions import PipError
from pip._internal.utils import deprecation
logger = logging.getLogger(__name__)
# Do not import and use main() directly! Using it directly is actively
# discouraged by pip's maintainers. The name, location and behavior of
# this function is subject to change, so calling it directly is not
# portable across different pip versions.
# In addition, running pip in-process is unsupported and unsafe. This is
# elaborated in detail at
# https://pip.pypa.io/en/stable/user_guide/#using-pip-from-your-program.
# That document also provides suggestions that should work for nearly
# all users that are considering importing and using main() directly.
# However, we know that certain users will still want to invoke pip
# in-process. If you understand and accept the implications of using pip
# in an unsupported manner, the best approach is to use runpy to avoid
# depending on the exact location of this entry point.
# The following example shows how to use runpy to invoke pip in that
# case:
#
# sys.argv = ["pip", your, args, here]
# runpy.run_module("pip", run_name="__main__")
#
# Note that this will exit the process after running, unlike a direct
# call to main. As it is not safe to do any processing after calling
# main, this should not be an issue in practice.
def main(args: Optional[List[str]] = None) -> int:
if args is None:
args = sys.argv[1:]
# Configure our deprecation warnings to be sent through loggers
deprecation.install_warning_logger()
autocomplete()
try:
cmd_name, cmd_args = parse_command(args)
except PipError as exc:
sys.stderr.write(f"ERROR: {exc}")
sys.stderr.write(os.linesep)
sys.exit(1)
# Needed for locale.getpreferredencoding(False) to work
# in pip._internal.utils.encoding.auto_decode
try:
locale.setlocale(locale.LC_ALL, "")
except locale.Error as e:
# setlocale can apparently crash if locale are uninitialized
logger.debug("Ignoring error %s when setting locale", e)
command = create_command(cmd_name, isolated=("--isolated" in cmd_args))
return command.main(cmd_args)

View File

@@ -1,134 +0,0 @@
"""A single place for constructing and exposing the main parser
"""
import os
import subprocess
import sys
from typing import List, Optional, Tuple
from pip._internal.build_env import get_runnable_pip
from pip._internal.cli import cmdoptions
from pip._internal.cli.parser import ConfigOptionParser, UpdatingDefaultsHelpFormatter
from pip._internal.commands import commands_dict, get_similar_commands
from pip._internal.exceptions import CommandError
from pip._internal.utils.misc import get_pip_version, get_prog
__all__ = ["create_main_parser", "parse_command"]
def create_main_parser() -> ConfigOptionParser:
"""Creates and returns the main parser for pip's CLI"""
parser = ConfigOptionParser(
usage="\n%prog <command> [options]",
add_help_option=False,
formatter=UpdatingDefaultsHelpFormatter(),
name="global",
prog=get_prog(),
)
parser.disable_interspersed_args()
parser.version = get_pip_version()
# add the general options
gen_opts = cmdoptions.make_option_group(cmdoptions.general_group, parser)
parser.add_option_group(gen_opts)
# so the help formatter knows
parser.main = True # type: ignore
# create command listing for description
description = [""] + [
f"{name:27} {command_info.summary}"
for name, command_info in commands_dict.items()
]
parser.description = "\n".join(description)
return parser
def identify_python_interpreter(python: str) -> Optional[str]:
# If the named file exists, use it.
# If it's a directory, assume it's a virtual environment and
# look for the environment's Python executable.
if os.path.exists(python):
if os.path.isdir(python):
# bin/python for Unix, Scripts/python.exe for Windows
# Try both in case of odd cases like cygwin.
for exe in ("bin/python", "Scripts/python.exe"):
py = os.path.join(python, exe)
if os.path.exists(py):
return py
else:
return python
# Could not find the interpreter specified
return None
def parse_command(args: List[str]) -> Tuple[str, List[str]]:
parser = create_main_parser()
# Note: parser calls disable_interspersed_args(), so the result of this
# call is to split the initial args into the general options before the
# subcommand and everything else.
# For example:
# args: ['--timeout=5', 'install', '--user', 'INITools']
# general_options: ['--timeout==5']
# args_else: ['install', '--user', 'INITools']
general_options, args_else = parser.parse_args(args)
# --python
if general_options.python and "_PIP_RUNNING_IN_SUBPROCESS" not in os.environ:
# Re-invoke pip using the specified Python interpreter
interpreter = identify_python_interpreter(general_options.python)
if interpreter is None:
raise CommandError(
f"Could not locate Python interpreter {general_options.python}"
)
pip_cmd = [
interpreter,
get_runnable_pip(),
]
pip_cmd.extend(args)
# Set a flag so the child doesn't re-invoke itself, causing
# an infinite loop.
os.environ["_PIP_RUNNING_IN_SUBPROCESS"] = "1"
returncode = 0
try:
proc = subprocess.run(pip_cmd)
returncode = proc.returncode
except (subprocess.SubprocessError, OSError) as exc:
raise CommandError(f"Failed to run pip under {interpreter}: {exc}")
sys.exit(returncode)
# --version
if general_options.version:
sys.stdout.write(parser.version)
sys.stdout.write(os.linesep)
sys.exit()
# pip || pip help -> print_help()
if not args_else or (args_else[0] == "help" and len(args_else) == 1):
parser.print_help()
sys.exit()
# the subcommand name
cmd_name = args_else[0]
if cmd_name not in commands_dict:
guess = get_similar_commands(cmd_name)
msg = [f'unknown command "{cmd_name}"']
if guess:
msg.append(f'maybe you meant "{guess}"')
raise CommandError(" - ".join(msg))
# all the args without the subcommand
cmd_args = args[:]
cmd_args.remove(cmd_name)
return cmd_name, cmd_args

View File

@@ -1,294 +0,0 @@
"""Base option parser setup"""
import logging
import optparse
import shutil
import sys
import textwrap
from contextlib import suppress
from typing import Any, Dict, Generator, List, Tuple
from pip._internal.cli.status_codes import UNKNOWN_ERROR
from pip._internal.configuration import Configuration, ConfigurationError
from pip._internal.utils.misc import redact_auth_from_url, strtobool
logger = logging.getLogger(__name__)
class PrettyHelpFormatter(optparse.IndentedHelpFormatter):
"""A prettier/less verbose help formatter for optparse."""
def __init__(self, *args: Any, **kwargs: Any) -> None:
# help position must be aligned with __init__.parseopts.description
kwargs["max_help_position"] = 30
kwargs["indent_increment"] = 1
kwargs["width"] = shutil.get_terminal_size()[0] - 2
super().__init__(*args, **kwargs)
def format_option_strings(self, option: optparse.Option) -> str:
return self._format_option_strings(option)
def _format_option_strings(
self, option: optparse.Option, mvarfmt: str = " <{}>", optsep: str = ", "
) -> str:
"""
Return a comma-separated list of option strings and metavars.
:param option: tuple of (short opt, long opt), e.g: ('-f', '--format')
:param mvarfmt: metavar format string
:param optsep: separator
"""
opts = []
if option._short_opts:
opts.append(option._short_opts[0])
if option._long_opts:
opts.append(option._long_opts[0])
if len(opts) > 1:
opts.insert(1, optsep)
if option.takes_value():
assert option.dest is not None
metavar = option.metavar or option.dest.lower()
opts.append(mvarfmt.format(metavar.lower()))
return "".join(opts)
def format_heading(self, heading: str) -> str:
if heading == "Options":
return ""
return heading + ":\n"
def format_usage(self, usage: str) -> str:
"""
Ensure there is only one newline between usage and the first heading
if there is no description.
"""
msg = "\nUsage: {}\n".format(self.indent_lines(textwrap.dedent(usage), " "))
return msg
def format_description(self, description: str) -> str:
# leave full control over description to us
if description:
if hasattr(self.parser, "main"):
label = "Commands"
else:
label = "Description"
# some doc strings have initial newlines, some don't
description = description.lstrip("\n")
# some doc strings have final newlines and spaces, some don't
description = description.rstrip()
# dedent, then reindent
description = self.indent_lines(textwrap.dedent(description), " ")
description = f"{label}:\n{description}\n"
return description
else:
return ""
def format_epilog(self, epilog: str) -> str:
# leave full control over epilog to us
if epilog:
return epilog
else:
return ""
def indent_lines(self, text: str, indent: str) -> str:
new_lines = [indent + line for line in text.split("\n")]
return "\n".join(new_lines)
class UpdatingDefaultsHelpFormatter(PrettyHelpFormatter):
"""Custom help formatter for use in ConfigOptionParser.
This is updates the defaults before expanding them, allowing
them to show up correctly in the help listing.
Also redact auth from url type options
"""
def expand_default(self, option: optparse.Option) -> str:
default_values = None
if self.parser is not None:
assert isinstance(self.parser, ConfigOptionParser)
self.parser._update_defaults(self.parser.defaults)
assert option.dest is not None
default_values = self.parser.defaults.get(option.dest)
help_text = super().expand_default(option)
if default_values and option.metavar == "URL":
if isinstance(default_values, str):
default_values = [default_values]
# If its not a list, we should abort and just return the help text
if not isinstance(default_values, list):
default_values = []
for val in default_values:
help_text = help_text.replace(val, redact_auth_from_url(val))
return help_text
class CustomOptionParser(optparse.OptionParser):
def insert_option_group(
self, idx: int, *args: Any, **kwargs: Any
) -> optparse.OptionGroup:
"""Insert an OptionGroup at a given position."""
group = self.add_option_group(*args, **kwargs)
self.option_groups.pop()
self.option_groups.insert(idx, group)
return group
@property
def option_list_all(self) -> List[optparse.Option]:
"""Get a list of all options, including those in option groups."""
res = self.option_list[:]
for i in self.option_groups:
res.extend(i.option_list)
return res
class ConfigOptionParser(CustomOptionParser):
"""Custom option parser which updates its defaults by checking the
configuration files and environmental variables"""
def __init__(
self,
*args: Any,
name: str,
isolated: bool = False,
**kwargs: Any,
) -> None:
self.name = name
self.config = Configuration(isolated)
assert self.name
super().__init__(*args, **kwargs)
def check_default(self, option: optparse.Option, key: str, val: Any) -> Any:
try:
return option.check_value(key, val)
except optparse.OptionValueError as exc:
print(f"An error occurred during configuration: {exc}")
sys.exit(3)
def _get_ordered_configuration_items(
self,
) -> Generator[Tuple[str, Any], None, None]:
# Configuration gives keys in an unordered manner. Order them.
override_order = ["global", self.name, ":env:"]
# Pool the options into different groups
section_items: Dict[str, List[Tuple[str, Any]]] = {
name: [] for name in override_order
}
for section_key, val in self.config.items():
# ignore empty values
if not val:
logger.debug(
"Ignoring configuration key '%s' as it's value is empty.",
section_key,
)
continue
section, key = section_key.split(".", 1)
if section in override_order:
section_items[section].append((key, val))
# Yield each group in their override order
for section in override_order:
for key, val in section_items[section]:
yield key, val
def _update_defaults(self, defaults: Dict[str, Any]) -> Dict[str, Any]:
"""Updates the given defaults with values from the config files and
the environ. Does a little special handling for certain types of
options (lists)."""
# Accumulate complex default state.
self.values = optparse.Values(self.defaults)
late_eval = set()
# Then set the options with those values
for key, val in self._get_ordered_configuration_items():
# '--' because configuration supports only long names
option = self.get_option("--" + key)
# Ignore options not present in this parser. E.g. non-globals put
# in [global] by users that want them to apply to all applicable
# commands.
if option is None:
continue
assert option.dest is not None
if option.action in ("store_true", "store_false"):
try:
val = strtobool(val)
except ValueError:
self.error(
"{} is not a valid value for {} option, " # noqa
"please specify a boolean value like yes/no, "
"true/false or 1/0 instead.".format(val, key)
)
elif option.action == "count":
with suppress(ValueError):
val = strtobool(val)
with suppress(ValueError):
val = int(val)
if not isinstance(val, int) or val < 0:
self.error(
"{} is not a valid value for {} option, " # noqa
"please instead specify either a non-negative integer "
"or a boolean value like yes/no or false/true "
"which is equivalent to 1/0.".format(val, key)
)
elif option.action == "append":
val = val.split()
val = [self.check_default(option, key, v) for v in val]
elif option.action == "callback":
assert option.callback is not None
late_eval.add(option.dest)
opt_str = option.get_opt_string()
val = option.convert_value(opt_str, val)
# From take_action
args = option.callback_args or ()
kwargs = option.callback_kwargs or {}
option.callback(option, opt_str, val, self, *args, **kwargs)
else:
val = self.check_default(option, key, val)
defaults[option.dest] = val
for key in late_eval:
defaults[key] = getattr(self.values, key)
self.values = None
return defaults
def get_default_values(self) -> optparse.Values:
"""Overriding to make updating the defaults after instantiation of
the option parser possible, _update_defaults() does the dirty work."""
if not self.process_default_values:
# Old, pre-Optik 1.5 behaviour.
return optparse.Values(self.defaults)
# Load the configuration, or error out in case of an error
try:
self.config.load()
except ConfigurationError as err:
self.exit(UNKNOWN_ERROR, str(err))
defaults = self._update_defaults(self.defaults.copy()) # ours
for option in self._get_all_options():
assert option.dest is not None
default = defaults.get(option.dest)
if isinstance(default, str):
opt_str = option.get_opt_string()
defaults[option.dest] = option.check_value(opt_str, default)
return optparse.Values(defaults)
def error(self, msg: str) -> None:
self.print_usage(sys.stderr)
self.exit(UNKNOWN_ERROR, f"{msg}\n")

View File

@@ -1,68 +0,0 @@
import functools
from typing import Callable, Generator, Iterable, Iterator, Optional, Tuple
from pip._vendor.rich.progress import (
BarColumn,
DownloadColumn,
FileSizeColumn,
Progress,
ProgressColumn,
SpinnerColumn,
TextColumn,
TimeElapsedColumn,
TimeRemainingColumn,
TransferSpeedColumn,
)
from pip._internal.utils.logging import get_indentation
DownloadProgressRenderer = Callable[[Iterable[bytes]], Iterator[bytes]]
def _rich_progress_bar(
iterable: Iterable[bytes],
*,
bar_type: str,
size: int,
) -> Generator[bytes, None, None]:
assert bar_type == "on", "This should only be used in the default mode."
if not size:
total = float("inf")
columns: Tuple[ProgressColumn, ...] = (
TextColumn("[progress.description]{task.description}"),
SpinnerColumn("line", speed=1.5),
FileSizeColumn(),
TransferSpeedColumn(),
TimeElapsedColumn(),
)
else:
total = size
columns = (
TextColumn("[progress.description]{task.description}"),
BarColumn(),
DownloadColumn(),
TransferSpeedColumn(),
TextColumn("eta"),
TimeRemainingColumn(),
)
progress = Progress(*columns, refresh_per_second=30)
task_id = progress.add_task(" " * (get_indentation() + 2), total=total)
with progress:
for chunk in iterable:
yield chunk
progress.update(task_id, advance=len(chunk))
def get_download_progress_renderer(
*, bar_type: str, size: Optional[int] = None
) -> DownloadProgressRenderer:
"""Get an object that can be used to render the download progress.
Returns a callable, that takes an iterable to "wrap".
"""
if bar_type == "on":
return functools.partial(_rich_progress_bar, bar_type=bar_type, size=size)
else:
return iter # no-op, when passed an iterator

View File

@@ -1,502 +0,0 @@
"""Contains the Command base classes that depend on PipSession.
The classes in this module are in a separate module so the commands not
needing download / PackageFinder capability don't unnecessarily import the
PackageFinder machinery and all its vendored dependencies, etc.
"""
import logging
import os
import sys
from functools import partial
from optparse import Values
from typing import TYPE_CHECKING, Any, List, Optional, Tuple
from pip._internal.cache import WheelCache
from pip._internal.cli import cmdoptions
from pip._internal.cli.base_command import Command
from pip._internal.cli.command_context import CommandContextMixIn
from pip._internal.exceptions import CommandError, PreviousBuildDirError
from pip._internal.index.collector import LinkCollector
from pip._internal.index.package_finder import PackageFinder
from pip._internal.models.selection_prefs import SelectionPreferences
from pip._internal.models.target_python import TargetPython
from pip._internal.network.session import PipSession
from pip._internal.operations.build.build_tracker import BuildTracker
from pip._internal.operations.prepare import RequirementPreparer
from pip._internal.req.constructors import (
install_req_from_editable,
install_req_from_line,
install_req_from_parsed_requirement,
install_req_from_req_string,
)
from pip._internal.req.req_file import parse_requirements
from pip._internal.req.req_install import InstallRequirement
from pip._internal.resolution.base import BaseResolver
from pip._internal.self_outdated_check import pip_self_version_check
from pip._internal.utils.temp_dir import (
TempDirectory,
TempDirectoryTypeRegistry,
tempdir_kinds,
)
from pip._internal.utils.virtualenv import running_under_virtualenv
if TYPE_CHECKING:
from ssl import SSLContext
logger = logging.getLogger(__name__)
def _create_truststore_ssl_context() -> Optional["SSLContext"]:
if sys.version_info < (3, 10):
raise CommandError("The truststore feature is only available for Python 3.10+")
try:
import ssl
except ImportError:
logger.warning("Disabling truststore since ssl support is missing")
return None
try:
import truststore
except ImportError:
raise CommandError(
"To use the truststore feature, 'truststore' must be installed into "
"pip's current environment."
)
return truststore.SSLContext(ssl.PROTOCOL_TLS_CLIENT)
class SessionCommandMixin(CommandContextMixIn):
"""
A class mixin for command classes needing _build_session().
"""
def __init__(self) -> None:
super().__init__()
self._session: Optional[PipSession] = None
@classmethod
def _get_index_urls(cls, options: Values) -> Optional[List[str]]:
"""Return a list of index urls from user-provided options."""
index_urls = []
if not getattr(options, "no_index", False):
url = getattr(options, "index_url", None)
if url:
index_urls.append(url)
urls = getattr(options, "extra_index_urls", None)
if urls:
index_urls.extend(urls)
# Return None rather than an empty list
return index_urls or None
def get_default_session(self, options: Values) -> PipSession:
"""Get a default-managed session."""
if self._session is None:
self._session = self.enter_context(self._build_session(options))
# there's no type annotation on requests.Session, so it's
# automatically ContextManager[Any] and self._session becomes Any,
# then https://github.com/python/mypy/issues/7696 kicks in
assert self._session is not None
return self._session
def _build_session(
self,
options: Values,
retries: Optional[int] = None,
timeout: Optional[int] = None,
fallback_to_certifi: bool = False,
) -> PipSession:
cache_dir = options.cache_dir
assert not cache_dir or os.path.isabs(cache_dir)
if "truststore" in options.features_enabled:
try:
ssl_context = _create_truststore_ssl_context()
except Exception:
if not fallback_to_certifi:
raise
ssl_context = None
else:
ssl_context = None
session = PipSession(
cache=os.path.join(cache_dir, "http") if cache_dir else None,
retries=retries if retries is not None else options.retries,
trusted_hosts=options.trusted_hosts,
index_urls=self._get_index_urls(options),
ssl_context=ssl_context,
)
# Handle custom ca-bundles from the user
if options.cert:
session.verify = options.cert
# Handle SSL client certificate
if options.client_cert:
session.cert = options.client_cert
# Handle timeouts
if options.timeout or timeout:
session.timeout = timeout if timeout is not None else options.timeout
# Handle configured proxies
if options.proxy:
session.proxies = {
"http": options.proxy,
"https": options.proxy,
}
# Determine if we can prompt the user for authentication or not
session.auth.prompting = not options.no_input
return session
class IndexGroupCommand(Command, SessionCommandMixin):
"""
Abstract base class for commands with the index_group options.
This also corresponds to the commands that permit the pip version check.
"""
def handle_pip_version_check(self, options: Values) -> None:
"""
Do the pip version check if not disabled.
This overrides the default behavior of not doing the check.
"""
# Make sure the index_group options are present.
assert hasattr(options, "no_index")
if options.disable_pip_version_check or options.no_index:
return
# Otherwise, check if we're using the latest version of pip available.
session = self._build_session(
options,
retries=0,
timeout=min(5, options.timeout),
# This is set to ensure the function does not fail when truststore is
# specified in use-feature but cannot be loaded. This usually raises a
# CommandError and shows a nice user-facing error, but this function is not
# called in that try-except block.
fallback_to_certifi=True,
)
with session:
pip_self_version_check(session, options)
KEEPABLE_TEMPDIR_TYPES = [
tempdir_kinds.BUILD_ENV,
tempdir_kinds.EPHEM_WHEEL_CACHE,
tempdir_kinds.REQ_BUILD,
]
def warn_if_run_as_root() -> None:
"""Output a warning for sudo users on Unix.
In a virtual environment, sudo pip still writes to virtualenv.
On Windows, users may run pip as Administrator without issues.
This warning only applies to Unix root users outside of virtualenv.
"""
if running_under_virtualenv():
return
if not hasattr(os, "getuid"):
return
# On Windows, there are no "system managed" Python packages. Installing as
# Administrator via pip is the correct way of updating system environments.
#
# We choose sys.platform over utils.compat.WINDOWS here to enable Mypy platform
# checks: https://mypy.readthedocs.io/en/stable/common_issues.html
if sys.platform == "win32" or sys.platform == "cygwin":
return
if os.getuid() != 0:
return
logger.warning(
"Running pip as the 'root' user can result in broken permissions and "
"conflicting behaviour with the system package manager. "
"It is recommended to use a virtual environment instead: "
"https://pip.pypa.io/warnings/venv"
)
def with_cleanup(func: Any) -> Any:
"""Decorator for common logic related to managing temporary
directories.
"""
def configure_tempdir_registry(registry: TempDirectoryTypeRegistry) -> None:
for t in KEEPABLE_TEMPDIR_TYPES:
registry.set_delete(t, False)
def wrapper(
self: RequirementCommand, options: Values, args: List[Any]
) -> Optional[int]:
assert self.tempdir_registry is not None
if options.no_clean:
configure_tempdir_registry(self.tempdir_registry)
try:
return func(self, options, args)
except PreviousBuildDirError:
# This kind of conflict can occur when the user passes an explicit
# build directory with a pre-existing folder. In that case we do
# not want to accidentally remove it.
configure_tempdir_registry(self.tempdir_registry)
raise
return wrapper
class RequirementCommand(IndexGroupCommand):
def __init__(self, *args: Any, **kw: Any) -> None:
super().__init__(*args, **kw)
self.cmd_opts.add_option(cmdoptions.no_clean())
@staticmethod
def determine_resolver_variant(options: Values) -> str:
"""Determines which resolver should be used, based on the given options."""
if "legacy-resolver" in options.deprecated_features_enabled:
return "legacy"
return "2020-resolver"
@classmethod
def make_requirement_preparer(
cls,
temp_build_dir: TempDirectory,
options: Values,
build_tracker: BuildTracker,
session: PipSession,
finder: PackageFinder,
use_user_site: bool,
download_dir: Optional[str] = None,
verbosity: int = 0,
) -> RequirementPreparer:
"""
Create a RequirementPreparer instance for the given parameters.
"""
temp_build_dir_path = temp_build_dir.path
assert temp_build_dir_path is not None
resolver_variant = cls.determine_resolver_variant(options)
if resolver_variant == "2020-resolver":
lazy_wheel = "fast-deps" in options.features_enabled
if lazy_wheel:
logger.warning(
"pip is using lazily downloaded wheels using HTTP "
"range requests to obtain dependency information. "
"This experimental feature is enabled through "
"--use-feature=fast-deps and it is not ready for "
"production."
)
else:
lazy_wheel = False
if "fast-deps" in options.features_enabled:
logger.warning(
"fast-deps has no effect when used with the legacy resolver."
)
return RequirementPreparer(
build_dir=temp_build_dir_path,
src_dir=options.src_dir,
download_dir=download_dir,
build_isolation=options.build_isolation,
check_build_deps=options.check_build_deps,
build_tracker=build_tracker,
session=session,
progress_bar=options.progress_bar,
finder=finder,
require_hashes=options.require_hashes,
use_user_site=use_user_site,
lazy_wheel=lazy_wheel,
verbosity=verbosity,
)
@classmethod
def make_resolver(
cls,
preparer: RequirementPreparer,
finder: PackageFinder,
options: Values,
wheel_cache: Optional[WheelCache] = None,
use_user_site: bool = False,
ignore_installed: bool = True,
ignore_requires_python: bool = False,
force_reinstall: bool = False,
upgrade_strategy: str = "to-satisfy-only",
use_pep517: Optional[bool] = None,
py_version_info: Optional[Tuple[int, ...]] = None,
) -> BaseResolver:
"""
Create a Resolver instance for the given parameters.
"""
make_install_req = partial(
install_req_from_req_string,
isolated=options.isolated_mode,
use_pep517=use_pep517,
config_settings=getattr(options, "config_settings", None),
)
resolver_variant = cls.determine_resolver_variant(options)
# The long import name and duplicated invocation is needed to convince
# Mypy into correctly typechecking. Otherwise it would complain the
# "Resolver" class being redefined.
if resolver_variant == "2020-resolver":
import pip._internal.resolution.resolvelib.resolver
return pip._internal.resolution.resolvelib.resolver.Resolver(
preparer=preparer,
finder=finder,
wheel_cache=wheel_cache,
make_install_req=make_install_req,
use_user_site=use_user_site,
ignore_dependencies=options.ignore_dependencies,
ignore_installed=ignore_installed,
ignore_requires_python=ignore_requires_python,
force_reinstall=force_reinstall,
upgrade_strategy=upgrade_strategy,
py_version_info=py_version_info,
)
import pip._internal.resolution.legacy.resolver
return pip._internal.resolution.legacy.resolver.Resolver(
preparer=preparer,
finder=finder,
wheel_cache=wheel_cache,
make_install_req=make_install_req,
use_user_site=use_user_site,
ignore_dependencies=options.ignore_dependencies,
ignore_installed=ignore_installed,
ignore_requires_python=ignore_requires_python,
force_reinstall=force_reinstall,
upgrade_strategy=upgrade_strategy,
py_version_info=py_version_info,
)
def get_requirements(
self,
args: List[str],
options: Values,
finder: PackageFinder,
session: PipSession,
) -> List[InstallRequirement]:
"""
Parse command-line arguments into the corresponding requirements.
"""
requirements: List[InstallRequirement] = []
for filename in options.constraints:
for parsed_req in parse_requirements(
filename,
constraint=True,
finder=finder,
options=options,
session=session,
):
req_to_add = install_req_from_parsed_requirement(
parsed_req,
isolated=options.isolated_mode,
user_supplied=False,
)
requirements.append(req_to_add)
for req in args:
req_to_add = install_req_from_line(
req,
None,
isolated=options.isolated_mode,
use_pep517=options.use_pep517,
user_supplied=True,
config_settings=getattr(options, "config_settings", None),
)
requirements.append(req_to_add)
for req in options.editables:
req_to_add = install_req_from_editable(
req,
user_supplied=True,
isolated=options.isolated_mode,
use_pep517=options.use_pep517,
config_settings=getattr(options, "config_settings", None),
)
requirements.append(req_to_add)
# NOTE: options.require_hashes may be set if --require-hashes is True
for filename in options.requirements:
for parsed_req in parse_requirements(
filename, finder=finder, options=options, session=session
):
req_to_add = install_req_from_parsed_requirement(
parsed_req,
isolated=options.isolated_mode,
use_pep517=options.use_pep517,
user_supplied=True,
)
requirements.append(req_to_add)
# If any requirement has hash options, enable hash checking.
if any(req.has_hash_options for req in requirements):
options.require_hashes = True
if not (args or options.editables or options.requirements):
opts = {"name": self.name}
if options.find_links:
raise CommandError(
"You must give at least one requirement to {name} "
'(maybe you meant "pip {name} {links}"?)'.format(
**dict(opts, links=" ".join(options.find_links))
)
)
else:
raise CommandError(
"You must give at least one requirement to {name} "
'(see "pip help {name}")'.format(**opts)
)
return requirements
@staticmethod
def trace_basic_info(finder: PackageFinder) -> None:
"""
Trace basic information about the provided objects.
"""
# Display where finder is looking for packages
search_scope = finder.search_scope
locations = search_scope.get_formatted_locations()
if locations:
logger.info(locations)
def _build_package_finder(
self,
options: Values,
session: PipSession,
target_python: Optional[TargetPython] = None,
ignore_requires_python: Optional[bool] = None,
) -> PackageFinder:
"""
Create a package finder appropriate to this requirement command.
:param ignore_requires_python: Whether to ignore incompatible
"Requires-Python" values in links. Defaults to False.
"""
link_collector = LinkCollector.create(session, options=options)
selection_prefs = SelectionPreferences(
allow_yanked=True,
format_control=options.format_control,
allow_all_prereleases=options.pre,
prefer_binary=options.prefer_binary,
ignore_requires_python=ignore_requires_python,
)
return PackageFinder.create(
link_collector=link_collector,
selection_prefs=selection_prefs,
target_python=target_python,
)

View File

@@ -1,159 +0,0 @@
import contextlib
import itertools
import logging
import sys
import time
from typing import IO, Generator, Optional
from pip._internal.utils.compat import WINDOWS
from pip._internal.utils.logging import get_indentation
logger = logging.getLogger(__name__)
class SpinnerInterface:
def spin(self) -> None:
raise NotImplementedError()
def finish(self, final_status: str) -> None:
raise NotImplementedError()
class InteractiveSpinner(SpinnerInterface):
def __init__(
self,
message: str,
file: Optional[IO[str]] = None,
spin_chars: str = "-\\|/",
# Empirically, 8 updates/second looks nice
min_update_interval_seconds: float = 0.125,
):
self._message = message
if file is None:
file = sys.stdout
self._file = file
self._rate_limiter = RateLimiter(min_update_interval_seconds)
self._finished = False
self._spin_cycle = itertools.cycle(spin_chars)
self._file.write(" " * get_indentation() + self._message + " ... ")
self._width = 0
def _write(self, status: str) -> None:
assert not self._finished
# Erase what we wrote before by backspacing to the beginning, writing
# spaces to overwrite the old text, and then backspacing again
backup = "\b" * self._width
self._file.write(backup + " " * self._width + backup)
# Now we have a blank slate to add our status
self._file.write(status)
self._width = len(status)
self._file.flush()
self._rate_limiter.reset()
def spin(self) -> None:
if self._finished:
return
if not self._rate_limiter.ready():
return
self._write(next(self._spin_cycle))
def finish(self, final_status: str) -> None:
if self._finished:
return
self._write(final_status)
self._file.write("\n")
self._file.flush()
self._finished = True
# Used for dumb terminals, non-interactive installs (no tty), etc.
# We still print updates occasionally (once every 60 seconds by default) to
# act as a keep-alive for systems like Travis-CI that take lack-of-output as
# an indication that a task has frozen.
class NonInteractiveSpinner(SpinnerInterface):
def __init__(self, message: str, min_update_interval_seconds: float = 60.0) -> None:
self._message = message
self._finished = False
self._rate_limiter = RateLimiter(min_update_interval_seconds)
self._update("started")
def _update(self, status: str) -> None:
assert not self._finished
self._rate_limiter.reset()
logger.info("%s: %s", self._message, status)
def spin(self) -> None:
if self._finished:
return
if not self._rate_limiter.ready():
return
self._update("still running...")
def finish(self, final_status: str) -> None:
if self._finished:
return
self._update(f"finished with status '{final_status}'")
self._finished = True
class RateLimiter:
def __init__(self, min_update_interval_seconds: float) -> None:
self._min_update_interval_seconds = min_update_interval_seconds
self._last_update: float = 0
def ready(self) -> bool:
now = time.time()
delta = now - self._last_update
return delta >= self._min_update_interval_seconds
def reset(self) -> None:
self._last_update = time.time()
@contextlib.contextmanager
def open_spinner(message: str) -> Generator[SpinnerInterface, None, None]:
# Interactive spinner goes directly to sys.stdout rather than being routed
# through the logging system, but it acts like it has level INFO,
# i.e. it's only displayed if we're at level INFO or better.
# Non-interactive spinner goes through the logging system, so it is always
# in sync with logging configuration.
if sys.stdout.isatty() and logger.getEffectiveLevel() <= logging.INFO:
spinner: SpinnerInterface = InteractiveSpinner(message)
else:
spinner = NonInteractiveSpinner(message)
try:
with hidden_cursor(sys.stdout):
yield spinner
except KeyboardInterrupt:
spinner.finish("canceled")
raise
except Exception:
spinner.finish("error")
raise
else:
spinner.finish("done")
HIDE_CURSOR = "\x1b[?25l"
SHOW_CURSOR = "\x1b[?25h"
@contextlib.contextmanager
def hidden_cursor(file: IO[str]) -> Generator[None, None, None]:
# The Windows terminal does not support the hide/show cursor ANSI codes,
# even via colorama. So don't even try.
if WINDOWS:
yield
# We don't want to clutter the output with control characters if we're
# writing to a file, or if the user is running with --quiet.
# See https://github.com/pypa/pip/issues/3418
elif not file.isatty() or logger.getEffectiveLevel() > logging.INFO:
yield
else:
file.write(HIDE_CURSOR)
try:
yield
finally:
file.write(SHOW_CURSOR)

View File

@@ -1,6 +0,0 @@
SUCCESS = 0
ERROR = 1
UNKNOWN_ERROR = 2
VIRTUALENV_NOT_FOUND = 3
PREVIOUS_BUILD_DIR_ERROR = 4
NO_MATCHES_FOUND = 23

View File

@@ -1,132 +0,0 @@
"""
Package containing all pip commands
"""
import importlib
from collections import namedtuple
from typing import Any, Dict, Optional
from pip._internal.cli.base_command import Command
CommandInfo = namedtuple("CommandInfo", "module_path, class_name, summary")
# This dictionary does a bunch of heavy lifting for help output:
# - Enables avoiding additional (costly) imports for presenting `--help`.
# - The ordering matters for help display.
#
# Even though the module path starts with the same "pip._internal.commands"
# prefix, the full path makes testing easier (specifically when modifying
# `commands_dict` in test setup / teardown).
commands_dict: Dict[str, CommandInfo] = {
"install": CommandInfo(
"pip._internal.commands.install",
"InstallCommand",
"Install packages.",
),
"download": CommandInfo(
"pip._internal.commands.download",
"DownloadCommand",
"Download packages.",
),
"uninstall": CommandInfo(
"pip._internal.commands.uninstall",
"UninstallCommand",
"Uninstall packages.",
),
"freeze": CommandInfo(
"pip._internal.commands.freeze",
"FreezeCommand",
"Output installed packages in requirements format.",
),
"inspect": CommandInfo(
"pip._internal.commands.inspect",
"InspectCommand",
"Inspect the python environment.",
),
"list": CommandInfo(
"pip._internal.commands.list",
"ListCommand",
"List installed packages.",
),
"show": CommandInfo(
"pip._internal.commands.show",
"ShowCommand",
"Show information about installed packages.",
),
"check": CommandInfo(
"pip._internal.commands.check",
"CheckCommand",
"Verify installed packages have compatible dependencies.",
),
"config": CommandInfo(
"pip._internal.commands.configuration",
"ConfigurationCommand",
"Manage local and global configuration.",
),
"search": CommandInfo(
"pip._internal.commands.search",
"SearchCommand",
"Search PyPI for packages.",
),
"cache": CommandInfo(
"pip._internal.commands.cache",
"CacheCommand",
"Inspect and manage pip's wheel cache.",
),
"index": CommandInfo(
"pip._internal.commands.index",
"IndexCommand",
"Inspect information available from package indexes.",
),
"wheel": CommandInfo(
"pip._internal.commands.wheel",
"WheelCommand",
"Build wheels from your requirements.",
),
"hash": CommandInfo(
"pip._internal.commands.hash",
"HashCommand",
"Compute hashes of package archives.",
),
"completion": CommandInfo(
"pip._internal.commands.completion",
"CompletionCommand",
"A helper command used for command completion.",
),
"debug": CommandInfo(
"pip._internal.commands.debug",
"DebugCommand",
"Show information useful for debugging.",
),
"help": CommandInfo(
"pip._internal.commands.help",
"HelpCommand",
"Show help for commands.",
),
}
def create_command(name: str, **kwargs: Any) -> Command:
"""
Create an instance of the Command class with the given name.
"""
module_path, class_name, summary = commands_dict[name]
module = importlib.import_module(module_path)
command_class = getattr(module, class_name)
command = command_class(name=name, summary=summary, **kwargs)
return command
def get_similar_commands(name: str) -> Optional[str]:
"""Command name auto-correct."""
from difflib import get_close_matches
name = name.lower()
close_commands = get_close_matches(name, commands_dict.keys())
if close_commands:
return close_commands[0]
else:
return None

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