from pathlib import Path
import shutil
folder=Path(__file__).parent
for root in (Path('C:/wechat_rpa'),Path('C:/kefu/wechat_rpa')):
    target=root/'reply_session_policy.py'
    if target.exists():
        backup=root/'backups/skip-sessions-20260917/reply_session_policy.py'
        backup.parent.mkdir(parents=True,exist_ok=True)
        if not backup.exists():shutil.copy2(target,backup)
    target.write_text((folder/'reply_session_policy.py').read_text(encoding='utf-8'),encoding='utf-8')