def _dispatch(self, msg):
# Get the Content-Type: for the message, then try to dispatch to
# self._handle_<maintype>_<subtype>(). If there's no handler for the
# full MIME type, then dispatch to self._handle_<maintype>(). If
# that's missing too, then dispatch to self._writeBody().
main = msg.get_content_maintype()
if msg.is_multipart() and main.lower() != 'multipart':
self._handle_multipart(msg)
else:
Generator._dispatch(self,msg)
