How to use the podcastparser.PodcastHandler function in podcastparser

def parse(url, stream, max_episodes=0):
    """Parse a podcast feed from the given URL and stream

    :param url: the URL of the feed. Will be used to resolve relative links
    :param stream: file-like object containing the feed content
    :param max_episodes: maximum number of episodes to return. 0 (default)
                         means no limit
    :returns: a dict with the parsed contents of the feed
    """
    handler = PodcastHandler(url, max_episodes)
    try:
        sax.parse(stream, handler)
    except sax.SAXParseException as e:
        raise FeedParseError(e.getMessage(), e.getException(), e._locator)
    return handler.data