def web_address(self):
port = self._current_web_port()<EOL>address = self.address or '<STR_LIT:127.0.0.1>'<EOL>if port is None:<EOL><INDENT>return None<EOL><DEDENT>return '<STR_LIT>'.format(<EOL>address if address and not is_boot2docker() else docker_host(),<EOL>port)<EOL>
Return the url of the web server or None if not running