

def _get_argument(self, name, default, source, strip=True):
    args = self._get_arguments(name, source, strip=strip)
    if (not args):
        if (default is self._ARG_DEFAULT):
            raise MissingArgumentError(name)
        return default
    return args[(- 1)]

dataset/ETHPy150Open RobotWebTools/rosbridge_suite/rosbridge_server/src/tornado/web.py RequestHandler._get_argument/original