689 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			689 lines
		
	
	
		
			25 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| import csv
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| import email.message
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| import functools
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| import json
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| import logging
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| import pathlib
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| import re
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| import zipfile
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| from typing import (
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|     IO,
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|     TYPE_CHECKING,
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|     Any,
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|     Collection,
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|     Container,
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|     Dict,
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|     Iterable,
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|     Iterator,
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|     List,
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|     NamedTuple,
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|     Optional,
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|     Tuple,
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|     Union,
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| )
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| 
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| from pip._vendor.packaging.requirements import Requirement
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| from pip._vendor.packaging.specifiers import InvalidSpecifier, SpecifierSet
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| from pip._vendor.packaging.utils import NormalizedName
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| from pip._vendor.packaging.version import LegacyVersion, Version
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| 
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| from pip._internal.exceptions import NoneMetadataError
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| from pip._internal.locations import site_packages, user_site
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| from pip._internal.models.direct_url import (
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|     DIRECT_URL_METADATA_NAME,
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|     DirectUrl,
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|     DirectUrlValidationError,
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| )
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| from pip._internal.utils.compat import stdlib_pkgs  # TODO: Move definition here.
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| from pip._internal.utils.egg_link import egg_link_path_from_sys_path
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| from pip._internal.utils.misc import is_local, normalize_path
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| from pip._internal.utils.packaging import safe_extra
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| from pip._internal.utils.urls import url_to_path
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| 
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| from ._json import msg_to_json
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| 
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| if TYPE_CHECKING:
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|     from typing import Protocol
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| else:
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|     Protocol = object
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| 
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| DistributionVersion = Union[LegacyVersion, Version]
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| 
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| InfoPath = Union[str, pathlib.PurePath]
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| 
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| logger = logging.getLogger(__name__)
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| 
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| 
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| class BaseEntryPoint(Protocol):
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|     @property
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|     def name(self) -> str:
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|         raise NotImplementedError()
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| 
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|     @property
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|     def value(self) -> str:
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|         raise NotImplementedError()
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| 
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|     @property
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|     def group(self) -> str:
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|         raise NotImplementedError()
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| 
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| 
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| def _convert_installed_files_path(
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|     entry: Tuple[str, ...],
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|     info: Tuple[str, ...],
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| ) -> str:
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|     """Convert a legacy installed-files.txt path into modern RECORD path.
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| 
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|     The legacy format stores paths relative to the info directory, while the
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|     modern format stores paths relative to the package root, e.g. the
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|     site-packages directory.
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| 
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|     :param entry: Path parts of the installed-files.txt entry.
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|     :param info: Path parts of the egg-info directory relative to package root.
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|     :returns: The converted entry.
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| 
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|     For best compatibility with symlinks, this does not use ``abspath()`` or
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|     ``Path.resolve()``, but tries to work with path parts:
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| 
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|     1. While ``entry`` starts with ``..``, remove the equal amounts of parts
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|        from ``info``; if ``info`` is empty, start appending ``..`` instead.
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|     2. Join the two directly.
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|     """
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|     while entry and entry[0] == "..":
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|         if not info or info[-1] == "..":
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|             info += ("..",)
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|         else:
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|             info = info[:-1]
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|         entry = entry[1:]
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|     return str(pathlib.Path(*info, *entry))
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| 
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| 
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| class RequiresEntry(NamedTuple):
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|     requirement: str
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|     extra: str
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|     marker: str
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| 
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| 
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| class BaseDistribution(Protocol):
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|     @classmethod
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|     def from_directory(cls, directory: str) -> "BaseDistribution":
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|         """Load the distribution from a metadata directory.
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| 
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|         :param directory: Path to a metadata directory, e.g. ``.dist-info``.
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|         """
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|         raise NotImplementedError()
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| 
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|     @classmethod
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|     def from_metadata_file_contents(
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|         cls,
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|         metadata_contents: bytes,
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|         filename: str,
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|         project_name: str,
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|     ) -> "BaseDistribution":
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|         """Load the distribution from the contents of a METADATA file.
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| 
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|         This is used to implement PEP 658 by generating a "shallow" dist object that can
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|         be used for resolution without downloading or building the actual dist yet.
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| 
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|         :param metadata_contents: The contents of a METADATA file.
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|         :param filename: File name for the dist with this metadata.
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|         :param project_name: Name of the project this dist represents.
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|         """
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|         raise NotImplementedError()
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| 
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|     @classmethod
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|     def from_wheel(cls, wheel: "Wheel", name: str) -> "BaseDistribution":
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|         """Load the distribution from a given wheel.
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| 
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|         :param wheel: A concrete wheel definition.
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|         :param name: File name of the wheel.
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| 
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|         :raises InvalidWheel: Whenever loading of the wheel causes a
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|             :py:exc:`zipfile.BadZipFile` exception to be thrown.
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|         :raises UnsupportedWheel: If the wheel is a valid zip, but malformed
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|             internally.
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|         """
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|         raise NotImplementedError()
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| 
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|     def __repr__(self) -> str:
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|         return f"{self.raw_name} {self.version} ({self.location})"
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| 
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|     def __str__(self) -> str:
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|         return f"{self.raw_name} {self.version}"
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| 
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|     @property
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|     def location(self) -> Optional[str]:
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|         """Where the distribution is loaded from.
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| 
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|         A string value is not necessarily a filesystem path, since distributions
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|         can be loaded from other sources, e.g. arbitrary zip archives. ``None``
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|         means the distribution is created in-memory.
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| 
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|         Do not canonicalize this value with e.g. ``pathlib.Path.resolve()``. If
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|         this is a symbolic link, we want to preserve the relative path between
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|         it and files in the distribution.
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|         """
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|         raise NotImplementedError()
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| 
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|     @property
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|     def editable_project_location(self) -> Optional[str]:
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|         """The project location for editable distributions.
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| 
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|         This is the directory where pyproject.toml or setup.py is located.
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|         None if the distribution is not installed in editable mode.
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|         """
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|         # TODO: this property is relatively costly to compute, memoize it ?
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|         direct_url = self.direct_url
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|         if direct_url:
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|             if direct_url.is_local_editable():
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|                 return url_to_path(direct_url.url)
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|         else:
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|             # Search for an .egg-link file by walking sys.path, as it was
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|             # done before by dist_is_editable().
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|             egg_link_path = egg_link_path_from_sys_path(self.raw_name)
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|             if egg_link_path:
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|                 # TODO: get project location from second line of egg_link file
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|                 #       (https://github.com/pypa/pip/issues/10243)
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|                 return self.location
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|         return None
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| 
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|     @property
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|     def installed_location(self) -> Optional[str]:
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|         """The distribution's "installed" location.
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| 
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|         This should generally be a ``site-packages`` directory. This is
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|         usually ``dist.location``, except for legacy develop-installed packages,
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|         where ``dist.location`` is the source code location, and this is where
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|         the ``.egg-link`` file is.
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| 
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|         The returned location is normalized (in particular, with symlinks removed).
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|         """
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|         raise NotImplementedError()
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| 
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|     @property
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|     def info_location(self) -> Optional[str]:
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|         """Location of the .[egg|dist]-info directory or file.
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| 
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|         Similarly to ``location``, a string value is not necessarily a
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|         filesystem path. ``None`` means the distribution is created in-memory.
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| 
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|         For a modern .dist-info installation on disk, this should be something
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|         like ``{location}/{raw_name}-{version}.dist-info``.
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| 
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|         Do not canonicalize this value with e.g. ``pathlib.Path.resolve()``. If
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|         this is a symbolic link, we want to preserve the relative path between
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|         it and other files in the distribution.
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|         """
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|         raise NotImplementedError()
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| 
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|     @property
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|     def installed_by_distutils(self) -> bool:
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|         """Whether this distribution is installed with legacy distutils format.
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| 
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|         A distribution installed with "raw" distutils not patched by setuptools
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|         uses one single file at ``info_location`` to store metadata. We need to
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|         treat this specially on uninstallation.
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|         """
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|         info_location = self.info_location
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|         if not info_location:
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|             return False
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|         return pathlib.Path(info_location).is_file()
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| 
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|     @property
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|     def installed_as_egg(self) -> bool:
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|         """Whether this distribution is installed as an egg.
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| 
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|         This usually indicates the distribution was installed by (older versions
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|         of) easy_install.
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|         """
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|         location = self.location
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|         if not location:
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|             return False
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|         return location.endswith(".egg")
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| 
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|     @property
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|     def installed_with_setuptools_egg_info(self) -> bool:
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|         """Whether this distribution is installed with the ``.egg-info`` format.
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| 
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|         This usually indicates the distribution was installed with setuptools
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|         with an old pip version or with ``single-version-externally-managed``.
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| 
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|         Note that this ensure the metadata store is a directory. distutils can
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|         also installs an ``.egg-info``, but as a file, not a directory. This
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|         property is *False* for that case. Also see ``installed_by_distutils``.
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|         """
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|         info_location = self.info_location
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|         if not info_location:
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|             return False
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|         if not info_location.endswith(".egg-info"):
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|             return False
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|         return pathlib.Path(info_location).is_dir()
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| 
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|     @property
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|     def installed_with_dist_info(self) -> bool:
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|         """Whether this distribution is installed with the "modern format".
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| 
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|         This indicates a "modern" installation, e.g. storing metadata in the
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|         ``.dist-info`` directory. This applies to installations made by
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|         setuptools (but through pip, not directly), or anything using the
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|         standardized build backend interface (PEP 517).
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|         """
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|         info_location = self.info_location
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|         if not info_location:
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|             return False
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|         if not info_location.endswith(".dist-info"):
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|             return False
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|         return pathlib.Path(info_location).is_dir()
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| 
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|     @property
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|     def canonical_name(self) -> NormalizedName:
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|         raise NotImplementedError()
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| 
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|     @property
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|     def version(self) -> DistributionVersion:
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|         raise NotImplementedError()
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| 
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|     @property
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|     def setuptools_filename(self) -> str:
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|         """Convert a project name to its setuptools-compatible filename.
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| 
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|         This is a copy of ``pkg_resources.to_filename()`` for compatibility.
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|         """
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|         return self.raw_name.replace("-", "_")
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| 
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|     @property
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|     def direct_url(self) -> Optional[DirectUrl]:
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|         """Obtain a DirectUrl from this distribution.
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| 
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|         Returns None if the distribution has no `direct_url.json` metadata,
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|         or if `direct_url.json` is invalid.
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|         """
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|         try:
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|             content = self.read_text(DIRECT_URL_METADATA_NAME)
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|         except FileNotFoundError:
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|             return None
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|         try:
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|             return DirectUrl.from_json(content)
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|         except (
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|             UnicodeDecodeError,
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|             json.JSONDecodeError,
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|             DirectUrlValidationError,
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|         ) as e:
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|             logger.warning(
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|                 "Error parsing %s for %s: %s",
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|                 DIRECT_URL_METADATA_NAME,
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|                 self.canonical_name,
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|                 e,
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|             )
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|             return None
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| 
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|     @property
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|     def installer(self) -> str:
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|         try:
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|             installer_text = self.read_text("INSTALLER")
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|         except (OSError, ValueError, NoneMetadataError):
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|             return ""  # Fail silently if the installer file cannot be read.
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|         for line in installer_text.splitlines():
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|             cleaned_line = line.strip()
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|             if cleaned_line:
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|                 return cleaned_line
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|         return ""
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| 
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|     @property
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|     def requested(self) -> bool:
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|         return self.is_file("REQUESTED")
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| 
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|     @property
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|     def editable(self) -> bool:
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|         return bool(self.editable_project_location)
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| 
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|     @property
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|     def local(self) -> bool:
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|         """If distribution is installed in the current virtual environment.
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| 
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|         Always True if we're not in a virtualenv.
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|         """
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|         if self.installed_location is None:
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|             return False
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|         return is_local(self.installed_location)
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| 
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|     @property
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|     def in_usersite(self) -> bool:
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|         if self.installed_location is None or user_site is None:
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|             return False
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|         return self.installed_location.startswith(normalize_path(user_site))
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| 
 | |
|     @property
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|     def in_site_packages(self) -> bool:
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|         if self.installed_location is None or site_packages is None:
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|             return False
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|         return self.installed_location.startswith(normalize_path(site_packages))
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| 
 | |
|     def is_file(self, path: InfoPath) -> bool:
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|         """Check whether an entry in the info directory is a file."""
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|         raise NotImplementedError()
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| 
 | |
|     def iter_distutils_script_names(self) -> Iterator[str]:
 | |
|         """Find distutils 'scripts' entries metadata.
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| 
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|         If 'scripts' is supplied in ``setup.py``, distutils records those in the
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|         installed distribution's ``scripts`` directory, a file for each script.
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|         """
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|         raise NotImplementedError()
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| 
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|     def read_text(self, path: InfoPath) -> str:
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|         """Read a file in the info directory.
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| 
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|         :raise FileNotFoundError: If ``path`` does not exist in the directory.
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|         :raise NoneMetadataError: If ``path`` exists in the info directory, but
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|             cannot be read.
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|         """
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|         raise NotImplementedError()
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| 
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|     def iter_entry_points(self) -> Iterable[BaseEntryPoint]:
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|         raise NotImplementedError()
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| 
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|     def _metadata_impl(self) -> email.message.Message:
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|         raise NotImplementedError()
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| 
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|     @functools.lru_cache(maxsize=1)
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|     def _metadata_cached(self) -> email.message.Message:
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|         # When we drop python 3.7 support, move this to the metadata property and use
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|         # functools.cached_property instead of lru_cache.
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|         metadata = self._metadata_impl()
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|         self._add_egg_info_requires(metadata)
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|         return metadata
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| 
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|     @property
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|     def metadata(self) -> email.message.Message:
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|         """Metadata of distribution parsed from e.g. METADATA or PKG-INFO.
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| 
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|         This should return an empty message if the metadata file is unavailable.
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| 
 | |
|         :raises NoneMetadataError: If the metadata file is available, but does
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|             not contain valid metadata.
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|         """
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|         return self._metadata_cached()
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| 
 | |
|     @property
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|     def metadata_dict(self) -> Dict[str, Any]:
 | |
|         """PEP 566 compliant JSON-serializable representation of METADATA or PKG-INFO.
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| 
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|         This should return an empty dict if the metadata file is unavailable.
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| 
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|         :raises NoneMetadataError: If the metadata file is available, but does
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|             not contain valid metadata.
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|         """
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|         return msg_to_json(self.metadata)
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| 
 | |
|     @property
 | |
|     def metadata_version(self) -> Optional[str]:
 | |
|         """Value of "Metadata-Version:" in distribution metadata, if available."""
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|         return self.metadata.get("Metadata-Version")
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| 
 | |
|     @property
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|     def raw_name(self) -> str:
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|         """Value of "Name:" in distribution metadata."""
 | |
|         # The metadata should NEVER be missing the Name: key, but if it somehow
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|         # does, fall back to the known canonical name.
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|         return self.metadata.get("Name", self.canonical_name)
 | |
| 
 | |
|     @property
 | |
|     def requires_python(self) -> SpecifierSet:
 | |
|         """Value of "Requires-Python:" in distribution metadata.
 | |
| 
 | |
|         If the key does not exist or contains an invalid value, an empty
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|         SpecifierSet should be returned.
 | |
|         """
 | |
|         value = self.metadata.get("Requires-Python")
 | |
|         if value is None:
 | |
|             return SpecifierSet()
 | |
|         try:
 | |
|             # Convert to str to satisfy the type checker; this can be a Header object.
 | |
|             spec = SpecifierSet(str(value))
 | |
|         except InvalidSpecifier as e:
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|             message = "Package %r has an invalid Requires-Python: %s"
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|             logger.warning(message, self.raw_name, e)
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|             return SpecifierSet()
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|         return spec
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| 
 | |
|     def iter_dependencies(self, extras: Collection[str] = ()) -> Iterable[Requirement]:
 | |
|         """Dependencies of this distribution.
 | |
| 
 | |
|         For modern .dist-info distributions, this is the collection of
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|         "Requires-Dist:" entries in distribution metadata.
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|         """
 | |
|         raise NotImplementedError()
 | |
| 
 | |
|     def iter_provided_extras(self) -> Iterable[str]:
 | |
|         """Extras provided by this distribution.
 | |
| 
 | |
|         For modern .dist-info distributions, this is the collection of
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|         "Provides-Extra:" entries in distribution metadata.
 | |
|         """
 | |
|         raise NotImplementedError()
 | |
| 
 | |
|     def _iter_declared_entries_from_record(self) -> Optional[Iterator[str]]:
 | |
|         try:
 | |
|             text = self.read_text("RECORD")
 | |
|         except FileNotFoundError:
 | |
|             return None
 | |
|         # This extra Path-str cast normalizes entries.
 | |
|         return (str(pathlib.Path(row[0])) for row in csv.reader(text.splitlines()))
 | |
| 
 | |
|     def _iter_declared_entries_from_legacy(self) -> Optional[Iterator[str]]:
 | |
|         try:
 | |
|             text = self.read_text("installed-files.txt")
 | |
|         except FileNotFoundError:
 | |
|             return None
 | |
|         paths = (p for p in text.splitlines(keepends=False) if p)
 | |
|         root = self.location
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|         info = self.info_location
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|         if root is None or info is None:
 | |
|             return paths
 | |
|         try:
 | |
|             info_rel = pathlib.Path(info).relative_to(root)
 | |
|         except ValueError:  # info is not relative to root.
 | |
|             return paths
 | |
|         if not info_rel.parts:  # info *is* root.
 | |
|             return paths
 | |
|         return (
 | |
|             _convert_installed_files_path(pathlib.Path(p).parts, info_rel.parts)
 | |
|             for p in paths
 | |
|         )
 | |
| 
 | |
|     def iter_declared_entries(self) -> Optional[Iterator[str]]:
 | |
|         """Iterate through file entries declared in this distribution.
 | |
| 
 | |
|         For modern .dist-info distributions, this is the files listed in the
 | |
|         ``RECORD`` metadata file. For legacy setuptools distributions, this
 | |
|         comes from ``installed-files.txt``, with entries normalized to be
 | |
|         compatible with the format used by ``RECORD``.
 | |
| 
 | |
|         :return: An iterator for listed entries, or None if the distribution
 | |
|             contains neither ``RECORD`` nor ``installed-files.txt``.
 | |
|         """
 | |
|         return (
 | |
|             self._iter_declared_entries_from_record()
 | |
|             or self._iter_declared_entries_from_legacy()
 | |
|         )
 | |
| 
 | |
|     def _iter_requires_txt_entries(self) -> Iterator[RequiresEntry]:
 | |
|         """Parse a ``requires.txt`` in an egg-info directory.
 | |
| 
 | |
|         This is an INI-ish format where an egg-info stores dependencies. A
 | |
|         section name describes extra other environment markers, while each entry
 | |
|         is an arbitrary string (not a key-value pair) representing a dependency
 | |
|         as a requirement string (no markers).
 | |
| 
 | |
|         There is a construct in ``importlib.metadata`` called ``Sectioned`` that
 | |
|         does mostly the same, but the format is currently considered private.
 | |
|         """
 | |
|         try:
 | |
|             content = self.read_text("requires.txt")
 | |
|         except FileNotFoundError:
 | |
|             return
 | |
|         extra = marker = ""  # Section-less entries don't have markers.
 | |
|         for line in content.splitlines():
 | |
|             line = line.strip()
 | |
|             if not line or line.startswith("#"):  # Comment; ignored.
 | |
|                 continue
 | |
|             if line.startswith("[") and line.endswith("]"):  # A section header.
 | |
|                 extra, _, marker = line.strip("[]").partition(":")
 | |
|                 continue
 | |
|             yield RequiresEntry(requirement=line, extra=extra, marker=marker)
 | |
| 
 | |
|     def _iter_egg_info_extras(self) -> Iterable[str]:
 | |
|         """Get extras from the egg-info directory."""
 | |
|         known_extras = {""}
 | |
|         for entry in self._iter_requires_txt_entries():
 | |
|             if entry.extra in known_extras:
 | |
|                 continue
 | |
|             known_extras.add(entry.extra)
 | |
|             yield entry.extra
 | |
| 
 | |
|     def _iter_egg_info_dependencies(self) -> Iterable[str]:
 | |
|         """Get distribution dependencies from the egg-info directory.
 | |
| 
 | |
|         To ease parsing, this converts a legacy dependency entry into a PEP 508
 | |
|         requirement string. Like ``_iter_requires_txt_entries()``, there is code
 | |
|         in ``importlib.metadata`` that does mostly the same, but not do exactly
 | |
|         what we need.
 | |
| 
 | |
|         Namely, ``importlib.metadata`` does not normalize the extra name before
 | |
|         putting it into the requirement string, which causes marker comparison
 | |
|         to fail because the dist-info format do normalize. This is consistent in
 | |
|         all currently available PEP 517 backends, although not standardized.
 | |
|         """
 | |
|         for entry in self._iter_requires_txt_entries():
 | |
|             if entry.extra and entry.marker:
 | |
|                 marker = f'({entry.marker}) and extra == "{safe_extra(entry.extra)}"'
 | |
|             elif entry.extra:
 | |
|                 marker = f'extra == "{safe_extra(entry.extra)}"'
 | |
|             elif entry.marker:
 | |
|                 marker = entry.marker
 | |
|             else:
 | |
|                 marker = ""
 | |
|             if marker:
 | |
|                 yield f"{entry.requirement} ; {marker}"
 | |
|             else:
 | |
|                 yield entry.requirement
 | |
| 
 | |
|     def _add_egg_info_requires(self, metadata: email.message.Message) -> None:
 | |
|         """Add egg-info requires.txt information to the metadata."""
 | |
|         if not metadata.get_all("Requires-Dist"):
 | |
|             for dep in self._iter_egg_info_dependencies():
 | |
|                 metadata["Requires-Dist"] = dep
 | |
|         if not metadata.get_all("Provides-Extra"):
 | |
|             for extra in self._iter_egg_info_extras():
 | |
|                 metadata["Provides-Extra"] = extra
 | |
| 
 | |
| 
 | |
| class BaseEnvironment:
 | |
|     """An environment containing distributions to introspect."""
 | |
| 
 | |
|     @classmethod
 | |
|     def default(cls) -> "BaseEnvironment":
 | |
|         raise NotImplementedError()
 | |
| 
 | |
|     @classmethod
 | |
|     def from_paths(cls, paths: Optional[List[str]]) -> "BaseEnvironment":
 | |
|         raise NotImplementedError()
 | |
| 
 | |
|     def get_distribution(self, name: str) -> Optional["BaseDistribution"]:
 | |
|         """Given a requirement name, return the installed distributions.
 | |
| 
 | |
|         The name may not be normalized. The implementation must canonicalize
 | |
|         it for lookup.
 | |
|         """
 | |
|         raise NotImplementedError()
 | |
| 
 | |
|     def _iter_distributions(self) -> Iterator["BaseDistribution"]:
 | |
|         """Iterate through installed distributions.
 | |
| 
 | |
|         This function should be implemented by subclass, but never called
 | |
|         directly. Use the public ``iter_distribution()`` instead, which
 | |
|         implements additional logic to make sure the distributions are valid.
 | |
|         """
 | |
|         raise NotImplementedError()
 | |
| 
 | |
|     def iter_all_distributions(self) -> Iterator[BaseDistribution]:
 | |
|         """Iterate through all installed distributions without any filtering."""
 | |
|         for dist in self._iter_distributions():
 | |
|             # Make sure the distribution actually comes from a valid Python
 | |
|             # packaging distribution. Pip's AdjacentTempDirectory leaves folders
 | |
|             # e.g. ``~atplotlib.dist-info`` if cleanup was interrupted. The
 | |
|             # valid project name pattern is taken from PEP 508.
 | |
|             project_name_valid = re.match(
 | |
|                 r"^([A-Z0-9]|[A-Z0-9][A-Z0-9._-]*[A-Z0-9])$",
 | |
|                 dist.canonical_name,
 | |
|                 flags=re.IGNORECASE,
 | |
|             )
 | |
|             if not project_name_valid:
 | |
|                 logger.warning(
 | |
|                     "Ignoring invalid distribution %s (%s)",
 | |
|                     dist.canonical_name,
 | |
|                     dist.location,
 | |
|                 )
 | |
|                 continue
 | |
|             yield dist
 | |
| 
 | |
|     def iter_installed_distributions(
 | |
|         self,
 | |
|         local_only: bool = True,
 | |
|         skip: Container[str] = stdlib_pkgs,
 | |
|         include_editables: bool = True,
 | |
|         editables_only: bool = False,
 | |
|         user_only: bool = False,
 | |
|     ) -> Iterator[BaseDistribution]:
 | |
|         """Return a list of installed distributions.
 | |
| 
 | |
|         This is based on ``iter_all_distributions()`` with additional filtering
 | |
|         options. Note that ``iter_installed_distributions()`` without arguments
 | |
|         is *not* equal to ``iter_all_distributions()``, since some of the
 | |
|         configurations exclude packages by default.
 | |
| 
 | |
|         :param local_only: If True (default), only return installations
 | |
|         local to the current virtualenv, if in a virtualenv.
 | |
|         :param skip: An iterable of canonicalized project names to ignore;
 | |
|             defaults to ``stdlib_pkgs``.
 | |
|         :param include_editables: If False, don't report editables.
 | |
|         :param editables_only: If True, only report editables.
 | |
|         :param user_only: If True, only report installations in the user
 | |
|         site directory.
 | |
|         """
 | |
|         it = self.iter_all_distributions()
 | |
|         if local_only:
 | |
|             it = (d for d in it if d.local)
 | |
|         if not include_editables:
 | |
|             it = (d for d in it if not d.editable)
 | |
|         if editables_only:
 | |
|             it = (d for d in it if d.editable)
 | |
|         if user_only:
 | |
|             it = (d for d in it if d.in_usersite)
 | |
|         return (d for d in it if d.canonical_name not in skip)
 | |
| 
 | |
| 
 | |
| class Wheel(Protocol):
 | |
|     location: str
 | |
| 
 | |
|     def as_zipfile(self) -> zipfile.ZipFile:
 | |
|         raise NotImplementedError()
 | |
| 
 | |
| 
 | |
| class FilesystemWheel(Wheel):
 | |
|     def __init__(self, location: str) -> None:
 | |
|         self.location = location
 | |
| 
 | |
|     def as_zipfile(self) -> zipfile.ZipFile:
 | |
|         return zipfile.ZipFile(self.location, allowZip64=True)
 | |
| 
 | |
| 
 | |
| class MemoryWheel(Wheel):
 | |
|     def __init__(self, location: str, stream: IO[bytes]) -> None:
 | |
|         self.location = location
 | |
|         self.stream = stream
 | |
| 
 | |
|     def as_zipfile(self) -> zipfile.ZipFile:
 | |
|         return zipfile.ZipFile(self.stream, allowZip64=True)
 | 
