Over the years I've figured out that you can not only bisect in your development history, but also in the program runtime. Start with "print('1/2')" or whatever

Over the years I've figured out that you can not only bisect in your development history, but also in the program runtime. Start with "print('1/2')" or whatever around halfway through the runtime of your code and see if you get there, then move to 1/4 or 3/4, etc. This can be done with break points, of course, but in my setup adding a print is usually just faster.