cpython/Lib/email/MIMENonMultipart.py
Barry Warsaw 2f514a806d These two classes provide bases for more specific content type
subclasses.

MIMENonMultipart: Base class for non-multipart/* content type subclass
specializations, e.g. image/gif.  This class overrides attach() which
raises an exception, since it makes no sense to attach a subpart to
e.g. an image/gif message.

MIMEMultipart: Base class for multipart/* content type subclass
specializations, e.g. multipart/mixed.  Does little more than provide
a useful constructor.
2002-06-01 05:59:12 +00:00

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# Copyright (C) 2002 Python Software Foundation
# Author: barry@zope.com (Barry Warsaw)
"""Base class for MIME type messages that are not multipart.
"""
from email import Errors
from email import MIMEBase
class MIMENonMultipart(MIMEBase.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/*')