added merge pdfs, fixed jpgstopdf arg issues,

jsontocsv.py

@@ -1,30 +1,62 @@
 import json
 import csv
 import sys
+import os
 
-if len(sys.argv) != 3:
-    print("Usage: python json_to_csv.py <input_json_path> <output_csv_path>")
-    sys.exit(1)
+def convert_json_to_csv(input_json_path, output_csv_path):
+    # Check if the input JSON file exists
+    if not os.path.isfile(input_json_path):
+        print(f"Error: The input JSON file '{input_json_path}' does not exist.")
+        sys.exit(1)
 
-input_json_path = sys.argv[1]
-output_csv_path = sys.argv[2]
+    # Check if the output directory is writable
+    output_dir = os.path.dirname(output_csv_path)
+    if output_dir and not os.access(output_dir, os.W_OK):
+        print(f"Error: The output directory '{output_dir}' is not writable.")
+        sys.exit(1)
 
-try:
-    with open(input_json_path, 'r') as json_file:
-        data = json.load(json_file)
-except Exception as e:
-    print(f"Error reading JSON file: {e}")
-    sys.exit(1)
+    try:
+        # Load JSON data
+        with open(input_json_path, 'r', encoding='utf-8') as json_file:
+            data = json.load(json_file)
+            
+            if not isinstance(data, list) or not data:
+                print("Error: The JSON file must contain a list of objects.")
+                sys.exit(1)
+    except json.JSONDecodeError:
+        print(f"Error: Failed to decode JSON file '{input_json_path}'. Please check if the file is valid JSON.")
+        sys.exit(1)
+    except Exception as e:
+        print(f"Error reading JSON file: {e}")
+        sys.exit(1)
 
-try:
-    with open(output_csv_path, 'w', newline='') as csv_file:
-        writer = csv.writer(csv_file)
-        # Write headers
-        writer.writerow(data[0].keys())
-        # Write data rows
-        for row in data:
-            writer.writerow(row.values())
-    print(f"Conversion complete. Check the {output_csv_path} file.")
-except Exception as e:
-    print(f"Error writing CSV file: {e}")
-    sys.exit(1)
+    try:
+        # Write data to CSV
+        with open(output_csv_path, 'w', newline='', encoding='utf-8') as csv_file:
+            writer = csv.writer(csv_file)
+            
+            # Write headers
+            headers = data[0].keys()
+            writer.writerow(headers)
+            
+            # Write data rows
+            for row in data:
+                writer.writerow([row.get(header, "") for header in headers])
+                
+        print(f"Conversion complete. Check the '{output_csv_path}' file.")
+    except PermissionError:
+        print(f"Error: Permission denied when writing to '{output_csv_path}'.")
+        sys.exit(1)
+    except Exception as e:
+        print(f"Error writing CSV file: {e}")
+        sys.exit(1)
+
+if __name__ == "__main__":
+    if len(sys.argv) != 3:
+        print("Usage: python jsontocsv.py <input_json_path> <output_csv_path>")
+        sys.exit(1)
+
+    input_json_path = sys.argv[1]
+    output_csv_path = sys.argv[2]
+
+    convert_json_to_csv(input_json_path, output_csv_path)