Add Python source updater script

scripts/update_source_files.py

@@ -0,0 +1,40 @@
+import argparse
+from pathlib import Path
+
+
+def replace_in_file(file_path: Path, old_text: str, new_text: str) -> bool:
+    """Replace occurrences of old_text with new_text in the given file."""
+    try:
+        content = file_path.read_text(encoding="utf-8")
+    except UnicodeDecodeError:
+        # skip files that cannot be decoded
+        return False
+    updated = content.replace(old_text, new_text)
+    if updated != content:
+        file_path.write_text(updated, encoding="utf-8")
+        return True
+    return False
+
+
+def process_directory(directory: Path, old_text: str, new_text: str):
+    for path in directory.rglob("*.py"):
+        if path.is_file():
+            if replace_in_file(path, old_text, new_text):
+                print(f"Updated {path}")
+
+
+def main():
+    parser = argparse.ArgumentParser(description="Replace text in Python source files.")
+    parser.add_argument("directory", type=Path, help="Root directory to traverse")
+    parser.add_argument("old_text", help="Text or date to search for")
+    parser.add_argument("new_text", help="Text or date to replace with")
+    args = parser.parse_args()
+
+    if not args.directory.is_dir():
+        parser.error(f"{args.directory} is not a directory")
+
+    process_directory(args.directory, args.old_text, args.new_text)
+
+
+if __name__ == "__main__":
+    main()