[mrweasel]

Depending on the project, I would go as far as 120 characters for Python. Normal small Python scripts, somewhere around 80 - 90 seems plenty.

Working with class, using something Django, I'd go up to 120.

It doesn't really matter though. What matters is that your team pick something and agree on it. The large scale Python projects I've worked on all required that code be run through flake8, but with a custom line lenght, normally 100 to 120.