1 # Copyright (C) 2002-2006 Python Software Foundation

     2 # Author: Barry Warsaw

     3 # Contact: email-sig@python.org

     4 

     5 """Base class for MIME type messages that are not multipart."""

     6 

     7 __all__ = ['MIMENonMultipart']

     8 

     9 from email import errors

    10 from email.mime.base import MIMEBase

    11 

    12 

    13 

    14 class MIMENonMultipart(MIMEBase):

    15     """Base class for MIME multipart/* type messages."""

    16 

    17     __pychecker__ = 'unusednames=payload'

    18 

    19     def attach(self, payload):

    20         # The public API prohibits attaching multiple subparts to MIMEBase

    21         # derived subtypes since none of them are, by definition, of content

    22         # type multipart/*

    23         raise errors.MultipartConversionError(

    24             'Cannot attach additional subparts to non-multipart/*')

    25 

    26     del __pychecker__