這是我的程序的相關部分：    import imaplib    ...    try:        M.expunge()        M.close()        M.logout()    except imaplib.abort as e:        print("IMAP abort")這是錯誤消息：Traceback (most recent call last): File "/home/xxx/anaconda3/lib/python3.6/imaplib.py", line 1014, in _command_complete   typ, data = self._get_tagged_response(tag) File "/home/xxx/anaconda3/lib/python3.6/imaplib.py", line 1126, in _get_tagged_response   self._check_bye() File "/home/xxx/anaconda3/lib/python3.6/imaplib.py", line 929, in _check_bye   raise self.abort(bye[-1].decode(self._encoding, 'replace'))imaplib.abort: IMAP session state is inconsistent, please relogin.During handling of the above exception, another exception occurred:Traceback (most recent call last): File "mailstats/autoresponder.py", line 224, in <module>   M.close() File "/home/xxx/anaconda3/lib/python3.6/imaplib.py", line 456, in close   typ, dat = self._simple_command('CLOSE') File "/home/xxx/anaconda3/lib/python3.6/imaplib.py", line 1191, in _simple_command   return self._command_complete(name, self._command(name, *args)) File "/home/xxx/anaconda3/lib/python3.6/imaplib.py", line 1016, in _command_complete   raise self.abort('command: %s => %s' % (name, val))imaplib.abort: command: CLOSE => IMAP session state is inconsistent, please relogin.During handling of the above exception, another exception occurred:Traceback (most recent call last): File "mailstats/autoresponder.py", line 226, in <module>   except imaplib.abort as e:AttributeError: module 'imaplib' has no attribute 'abort'因此，如果 imaplib 沒有名為 的屬性abort，那么如何self.abort()在 929 行中引發_check_bye？我怎么抓住它？