def interwiki(self, expand=True):
    """Iterate interwiki links in the page text, excluding language links.

    @param expand: if True (default), include interwiki links found in
        templates transcluded onto this page; if False, only iterate
        interwiki links found in this page's own wikitext
    @type expand: bool

    @return: a generator that yields Link objects
    """
    # This function does not exist in the API, so it has to be
    # implemented by screen-scraping