关于python：处理模块中的异常

Handling exceptions from a module

我正在尝试使用从https://github.com/dbr/tvdb_api导入的"thetvdb"模块。我设法将模块导入到我的代码中，但我试图从模块中获取错误以了解结果。找不到节目、找不到剧集等，如果不破坏脚本，我就无法成功完成。

这是我当前的代码：

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#!/usr/bin/env python3
from tvdb_api import tvdb_api
t = tvdb_api.Tvdb()

show_name = raw_input("What is the tv show?")
season_num = int(raw_input("What is the season number?"))
episode_num = int(raw_input("What is the episode number?"))
try:
episode = t[show_name][season_num][episode_num] # get season 1, episode 3 of show
print episode['episodename'] # Print episode name
except tvdb_api.tvdb_exception:
print("error")

我想要的不仅仅是我正在印刷的东西。我尝试过返回，但python告诉我它不在函数中。我认为让我失望的是错误类是空的。

以下是tvdbapi.py文件中异常类的一段代码：

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## Exceptions

class tvdb_exception(Exception):
"""Any exception generated by tvdb_api
"""
pass

class tvdb_error(tvdb_exception):
"""An error with thetvdb.com (Cannot connect, for example)
"""
pass

class tvdb_userabort(tvdb_exception):
"""User aborted the interactive selection (via
the q command, ^c etc)
"""
pass

class tvdb_notauthorized(tvdb_exception):
"""An authorization error with thetvdb.com
"""
pass

class tvdb_shownotfound(tvdb_exception):
"""Show cannot be found on thetvdb.com (non-existant show)
"""
pass

class tvdb_seasonnotfound(tvdb_exception):
"""Season cannot be found on thetvdb.com
"""
pass

class tvdb_episodenotfound(tvdb_exception):
"""Episode cannot be found on thetvdb.com
"""
pass

class tvdb_resourcenotfound(tvdb_exception):
"""Resource cannot be found on thetvdb.com
"""
pass