Method attach

Lib/email/mime/nonmultipart.py:16–21

(self, payload)

    """Base class for MIME non-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/*')