/Lib/email/mime/nonmultipart.py

 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
 9from email import errors
10from email.mime.base import MIMEBase
11
12
13
14class 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__