Holy crap y'all tonight I actually sat down and repeatedly refactored a chunk of code to make it easier to unit test, wrote said tests, and had said tests reveal a logic bug in the code being tested! I know that's like, THE POINT of unit testing, but I'd never actually had it happen to me before (probably because I never really even tried to write tests until recently). Can't say enough about the #100daysofcode with #python course. Amazing stuff.