查询showes时 如果城市不支持 会报错

[dontcallmilanac]

tickets 咸阳 音乐会

Traceback (most recent call last):
  File "D:\Program Files\Python36\Scripts\tickets-script.py", line 9, in <module>
    load_entry_point('tickets==0.2.3', 'console_scripts', 'tickets')()
  File "D:\Program Files\Python36\lib\site-packages\tickets-0.2.3-py3.6.egg\tickets\core.py", line 92, in cli
    q.query().pretty_print()
  File "D:\Program Files\Python36\lib\site-packages\tickets-0.2.3-py3.6.egg\tickets\showes.py", line 170, in query
    params = self._build_params()
  File "D:\Program Files\Python36\lib\site-packages\tickets-0.2.3-py3.6.egg\tickets\showes.py", line 142, in _build_params
    cityID=self._city_id, isText=1,
  File "D:\Program Files\Python36\lib\site-packages\tickets-0.2.3-py3.6.egg\tickets\showes.py", line 112, in _city_id
    exit_after_echo(CITY_NOT_FOUND)
NameError: name 'exit_after_echo' is not defined