So the other day, I was working on some Python project when there was this bug that kept transforming. Like seriously, I would turn from "bool not defined" to "function does not exist" to literally "file does not exist"... within the FILE. And when I fixed them, new bugs kept popping up, and I couldn't find anything that was a problem. Nothing. There was this one function in there that, if I changed even the comments in there, would break. And so.... I turned off Atom and turned it on again. ( ha ) Didn't work. I restarted my computer. I copy pasted the file into another file. I used another IDE. I restarted GHCI. I restarted Jupyter Notebook... and after 6 hours... I found that it was because an if statement has a comparison between a bool and a bool, with a = in the middle. (not ==). I swear I almost threw the computer on the floor.