def groupMetaUpdate(self, group, meta):
        if meta in 'topic':
            topic = meta['topic']
            author = meta.get('topic_author', '')
            self.topic(
                self.name,
                '#' + group.name,
                topic,
                '%s!%s@%s' % (author, author, self.hostname)
                )

    # irc.IRC callbacks - starting with login related stuff.
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/words/service.py/IRCUser.groupMetaUpdate/swapped operands of `in`