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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def create_wiki(post_data):
        '''
        Create the wiki.
        '''
        logger.info('Call create wiki')

        title = post_data['title'].strip()
        if len(title) < 2:
            logger.info(' ' * 4 + 'The title is too short.')
            return False

        the_wiki = MWiki.get_by_wiki(title)
        if the_wiki:
            logger.info(' ' * 4 + 'The title already exists.')
            MWiki.update(the_wiki.uid, post_data)
            return

        uid = '_' + tools.get_uu8d()

        return MWiki.__create_rec(uid, '1', post_data=post_data)