Get the data for a given stream manually

def get(self, stream, fmt='txt', **kwargs):
        """Get the data for a given stream manually"""
        sel = ''.join(["&{0}={1}".format(k, v) for (k, v) in kwargs.items()])
        url = "streamds/{0}.{1}?{2}".format(stream, fmt, sel[1:])
        data = self._db._get_content(url)
        if not data:
            log.error("No data found at URL '%s'." % url)
            return
        if (data.startswith("ERROR")):
            log.error(data)
            return
        if fmt == "txt":
            return read_csv(data)
        return data