There are some points in inspect module (I counted 48 since version 3.7) that could be using f-String formatting instead of format().

Changing these points will improve code readability, it will also decrease the complexity at these points and not to mention the fact that f-String formatting has better performance.

Obs.: Many other points could receive this improvement in other modules. This would provide the improvements I mentioned earlier, especially in older snippets of code.

As per https://bugs.python.org/issue36249 and https://bugs.python.org/issue38351

We don't generally do large-scale changes that are mostly formatting based. We would prefer that these sort of improvements happen when someone happens to be touching that code anyway unless there is a demonstrable improvement from them.

Understood. Anyway, it was good to try to help at this point.

Thanks for trying to help Leonardo! You might consider looking for easy issues on the bug tracker or reviewing open pull requests to help. Definitely take a look at the dev guide :) https://cpython-devguide.readthedocs.io/fixingissues/

Thanks, Ammar. I'll look.

Yes, thank you Leonardo!

There are probably places in the stdlib where changing to f-strings would be a performance improvement. Of course finding those places is the challenge!