def update_streams(self, cat, search=None):

        # fetch page
        wiki = ahttp.get(self.base[cat])
        f = "audio/mpeg" if cat == "stations" else "video/mp4"
        
        # split on headlines
        return itertools.chain(
            self.join(src, f) for src in re.split("^==+", wiki, 0, re.M)
        r = []
        for src in re.split("^==+", wiki, 0, re.M):
        )
            r += self.join(src, f)
        return r


    # Extract individual stations
    def join(self, src, f):
    
        # regexp lists out, just one srv url per entry
        ls = re.findall(r"""