Import .pgn, list by frequency, and allow for adjustments.

This python code with the help of ChatGPT should lay out further important changes. You bring in tournament games, you rank them, and then you allow the user to re-order. """ chessopenings1.py Personal Opening Catalog Manager Requires: pip install python-chess """ import chess.pgn from collections import Counter import json import os JSON_FILE = "personal_openings.json" def load_personal_list(): if os.path.exists(JSON_FILE): with open(JSON_FILE, "r", encoding="utf-8") as f: return json.load(f) return None def save_personal_list(openings): with open(JSON_FILE, "w", encoding="utf-8") as f: json.dump(openings, f, indent=4) def extract_openings(filename): counter = Counter() game_count = 0 try: with open(filename, "r", encoding="utf-8", errors="ignore") as pgn: while True: game = chess.pgn.read_game(pgn) if game is None: break game_count += 1 eco = game.headers.get("ECO", "").strip() opening = game.headers.get("Opening", "").strip() variation = game.headers.get("Variation", "").strip() if not opening: opening = "Unknown Opening" if variation: name = f"{eco} | {opening} | {variation}" else: name = f"{eco} | {opening}" counter[name] += 1 except Exception as e: print("\nERROR READING FILE") print(e) return [] print(f"\nGames read: {game_count}") print(f"Unique openings found: {len(counter)}") return [opening for opening, count in counter.most_common()] def display_list(title, openings): print(f"\n{title}") print("=" * 80) for i, opening in enumerate(openings, start=1): print(f"{i:3} {opening}") def first_run(personal): while True: display_list("INITIAL OPENING LIST", personal) print("\nCommands") print("--------") print("2=1 Move item 2 to position 1") print("6=3 Move item 6 to position 3") print("s Save list") cmd = input("\nCommand: ").strip().lower() if cmd == "s": save_personal_list(personal) print( f"\nCreated {JSON_FILE}" f" with {len(personal)} openings." ) return personal if "=" not in cmd: print("Invalid command.") continue try: source, destination = cmd.split("=") source = int(source) destination = int(destination) if source < 1 or source > len(personal): print("Source out of range.") continue if destination < 1 or destination > len(personal): print("Destination out of range.") continue item = personal.pop(source - 1) personal.insert(destination - 1, item) except ValueError: print("Invalid command.") def update_existing_list(personal, ranked_openings): new_openings = [ opening for opening in ranked_openings if opening not in personal ] if not new_openings: print("\nNo new openings found.") return personal while True: display_list("PERSONAL OPENING LIST", personal) display_list("NEW OPENINGS", new_openings) print("\nCommands") print("--------") print("1=3 Insert NEW opening #1 into PERSONAL position #3") print("s Save and finish this PGN") cmd = input("\nCommand: ").strip().lower() if cmd == "s": save_personal_list(personal) print("\nChanges saved.") return personal if "=" not in cmd: print("Invalid command.") continue try: left, right = cmd.split("=") new_number = int(left) insert_position = int(right) if new_number < 1 or new_number > len(new_openings): print("Opening number out of range.") continue if insert_position < 1 or insert_position > len(personal) + 1: print("Insert position out of range.") continue opening = new_openings.pop(new_number - 1) personal.insert(insert_position - 1, opening) print(f"\nInserted:") print(opening) print(f"at position {insert_position}") save_personal_list(personal) if not new_openings: print("\nNo remaining new openings.") return personal except ValueError: print("Invalid command format.") def process_pgn(personal): name = input( "\nPGN filename (WITHOUT .pgn) or q to quit: " ).strip() if name.lower() == "q": return personal, False filename = name + ".pgn" if not os.path.exists(filename): print(f"\nFile not found: {filename}") return personal, True ranked_openings = extract_openings(filename) if not ranked_openings: print("\nNo openings found.") return personal, True # # FIRST RUN # if personal is None: personal = ranked_openings.copy() personal = first_run(personal) return personal, True # # LATER RUNS # personal = update_existing_list( personal, ranked_openings ) return personal, True def main(): personal = load_personal_list() if personal is None: print("\nNo personal_openings.json found.") print("The first PGN will create it.") else: print( f"\nLoaded {len(personal)} openings " f"from personal_openings.json" ) while True: personal, keep_running = process_pgn(personal) if not keep_running: break print("\nFinished.") if __name__ == "__main__": main()