I have programmed in python for almost 5 years, with medium-large (several 100kloc) projects, this has never ever been an issue. If you mix tabs/space, you can

I have programmed in python for almost 5 years, with medium-large (several 100kloc) projects, this has never ever been an issue. If you mix tabs/space, you can have issue, but that's nothing that any decent text editor cannot fix/highlight.