Yup, I remember when I was learning Python, before I ever wrote any real tests, all my modules would be littered with: if arg[1] == 'test1': print func1(

Yup, I remember when I was learning Python, before I ever wrote any real tests, all my modules would be littered with: if arg[1] == 'test1': print func1(a) elif arg[1] == 'test2': print func1(b) elif arg[1] == 'test3': print func2(a) ... Eventually I found it was way easier to stick this in a _test.py file :)