def METHOD_NAME(self, section_index=0):
    """Launch a help section."""
    uri = self._sections[section_index][1]
    if len(uri.split()) == 1:
        self._open_url(uri)
    else:
        if self._verbose:
            print("running command: %s" % uri)
        with Popen(uri, shell=True) as p:
            p.wait()