无法计算出为什么我得到了NameError: name 'thread'没有定义?

I've downloaded this .py file and I'm trying to get it to run. However, everytime I do I get the following callback error and I'm at a loss to work out what is causing it. I'm running Python 3.4.1 if that's any help, but as far as I can see it should all work. The error I get is:I've downloaded this .py file and I'm trying to