How to highlight Python modules that are not used in Emacs

Question

Something like 6 months ago, I met a developer who was using Emacs. We were writing Django code and thus Python. There is a feature he has enabled (wrote himself ?) which could highlight the imported modules that were not used.

I am willing to have this, unfortunately I didn't find anything related the past 15 minutes. So my guess is that he wrote it himself. I am far from the Lisp guru you guys could be, hence here I am, asking for directions about such a task ;].

Answer 1

For automatic checking using imported modules you need install flycheck and python-mode, and later execute command flycheck-verify-setup.

Later you must install python packages, for example, pep8, pylint, flake8 and other. Install him with pip on system side (recommended) or in your virtual environment.

Answer 2

You can get automatic python syntax checking (including unused imports) by installing flycheck