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- # Copyright (C) 2002-2006 Python Software Foundation
- # Author: Barry Warsaw
- # Contact: email-sig@python.org
- """Base class for MIME type messages that are not multipart."""
- from __future__ import unicode_literals
- from __future__ import division
- from __future__ import absolute_import
- __all__ = ['MIMENonMultipart']
- from future.backports.email import errors
- from future.backports.email.mime.base import MIMEBase
- class MIMENonMultipart(MIMEBase):
- """Base class for MIME multipart/* type messages."""
- def attach(self, payload):
- # The public API prohibits attaching multiple subparts to MIMEBase
- # derived subtypes since none of them are, by definition, of content
- # type multipart/*
- raise errors.MultipartConversionError(
- 'Cannot attach additional subparts to non-multipart/*')
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