I know I ran into it at one point, but I haven't slung python in anger in like a decade, so maybe the editors most people are using have started preventing this

I know I ran into it at one point, but I haven't slung python in anger in like a decade, so maybe the editors most people are using have started preventing this sort of thing better. Though I do know in Visual Studio (what I do my day to day coding in these days) I've had situations at work where tabs and spaces got mixed together and at some point it finally started complaining but not right away.