main.py 文件源码

def _uid_str(uid_list: str or [str] or Generator) -> str:
        """
        Prepare list of uid for use in commands: delete/copy/move/seen
        uid_list can be: str, list, tuple, set, fetch generator
        """
        if not uid_list:
            raise MailBox.MailBoxUidParamError('uid_list should not be empty')
        if type(uid_list) is str:
            uid_list = uid_list.split(',')
        if inspect.isgenerator(uid_list):
            uid_list = [msg.uid for msg in uid_list if msg.uid]
        if type(uid_list) not in (list, tuple, set):
            raise MailBox.MailBoxUidParamError('Wrong uid_list type: {}'.format(type(uid_list)))
        for uid in uid_list:
            if type(uid) is not str:
                raise MailBox.MailBoxUidParamError('uid {} is not string'.format(str(uid)))
            if not uid.strip().isdigit():
                raise MailBox.MailBoxUidParamError('Wrong uid: {}'.format(uid))
        return ','.join((i.strip() for i in uid_list))