Traceback (most recent call last):
  File "./topicbot.py", line 187, in <module>
    listen()
  File "./topicbot.py", line 161, in listen
    get_topic(channel, user, time)
  File "./topicbot.py", line 61, in get_topic
    with open("topics_" + channel + ".txt", "r") as topics:
IOError: [Errno 2] No such file or directory: 'topics_topicbot.txt'