How to turn on "unused imports" highlighting in PyCharm

Question

My PyCharm doesn't mark any imports as unused.

Me (os is not using):

Should be (found this picture in web):

How can I enable it?

Answer 1

Have you seen this green icon in the top right corner? You can choose which problems you want to display. Just choose "All problems".

I tried everything: reinstalled pycharm, cleaned caches, tried other projects, etc. And this is what solved it for me

Answer 2

For the next person coming across this the following might help:

• Click "File";

• Click "Invalidate Caches / Restart..."

• Click "Invalidate and Restart"

This can resolve the problem when unused imports are not shown.