I billed 8 hours work to a company to fix a python bug that was exactly this problem. After a lot of refactoring by someone inexperienced in python, something

I billed 8 hours work to a company to fix a python bug that was exactly this problem. After a lot of refactoring by someone inexperienced in python, something was indented inside of a loop that should have been outside it. 8 hours work for de-denting one line of code.