I think linters are really effective to figure out such issues in professional code. For students for example, I'll have to agree. Maybe having a flag or envir

I think linters are really effective to figure out such issues in professional code. For students for example, I'll have to agree. Maybe having a flag or environment variable that teachers can set up for it would be a nice idea. You should start a thread on the python-ideas mailing list about this, and it might get somewhere :)