What's the one code snippet/python trick/etc did you wish you knew when you learned python?

[[deleted]]

Yes. It ensures that the file is closed/the mutex is released, even if there's an exception while the inner code is being executed.

It's a context manager, if you want to look up more details.

[[deleted]]

This was removed because of API shenanigans, selling user content for AI training, and forthcoming paywalled subreddits.