mail.py 文件源码

def __init__(self, attachment_file, mime_type, attachment_filename=None):
        """
        :param attachment_file  ?????????????file????StringIO???
                                ????????????????????
        :param mime_type  ???mime type???application/octet-stream
        :param attachment_filename  ?????????
        """
        if attachment_filename is None:
            if isinstance(attachment_file, types.StringTypes):
                self._attachment_filename = os.path.split(
                    attachment_file)[1]
            elif isinstance(attachment_file, types.FileType):
                self._attachment_filename = os.path.split(
                    attachment_file.name)[1]
            else:
                raise InvalidArgumentException(
                    u"????attachement_filename?????????")