from pathlib import Path
import os
for root in (Path('C:/wechat_rpa'), Path('C:/kefu/wechat_rpa')):
    path = root / 'wechat_gui_qt.py'
    s = path.read_text(encoding='utf-8')
    old = '    def closeEvent(self, event) -> None:\n        if (not getattr(self, "_exit_requested", False)'
    new = '    def closeEvent(self, event) -> None:\n        if not hasattr(self, "runtime_settings"):\n            event.accept()\n            return\n        if (not getattr(self, "_exit_requested", False)'
    assert old in s
    s = s.replace(old, new, 1)
    t = path.with_suffix('.tray.tmp')
    t.write_text(s, encoding='utf-8')
    os.replace(t, path)