Method _handle_message

Lib/email/generator.py:358–376

(self, msg)

        self._fp.write(self._encoded_NL.join(blocks))

    def _handle_message(self, msg):
        s = self._new_buffer()
        g = self.clone(s)
        # The payload of a message/rfc822 part should be a multipart sequence
        # of length 1.  The zeroth element of the list should be the Message
        # object for the subpart.  Extract that object, stringify it, and
        # write it out.
        # Except, it turns out, when it's a string instead, which happens when
        # and only when HeaderParser is used on a message of mime type
        # message/rfc822.  Such messages are generated by, for example,
        # Groupwise when forwarding unadorned messages.  (Issue 7970.)  So
        # in that case we just emit the string body.
        payload = msg._payload
        if isinstance(payload, list):
            g.flatten(msg.get_payload(0), unixfrom=False, linesep=self._NL)
            payload = s.getvalue()
        else:
            payload = self._encode(payload)
        self._fp.write(payload)

    # This used to be a module level function; we use a classmethod for this
    # and _compile_re so we can continue to provide the module level function