Python is an example of a language where, in general, the standard library probably isn't the best thing to read if you want to learn to write downstream Python

Python is an example of a language where, in general, the standard library probably isn't the best thing to read if you want to learn to write downstream Python applications/libraries. It can be terse, and not follow "modern" best practices in places (it was written at a time with different "best practices", but the code works so no need to change it). There are some exceptions... I'd say the `statistics` module is one [1], the `collections` module might be another [2]. But in general, it's probably not the best place to start. If you stumble upon the `multiprocessing` library source code as inspiration for "good Python code"... you're going to be in for a bad time and your future collaborators will not be happy. [1]: https://github.com/python/cpython/blob/3.12/Lib/statistics.py https://github.com/python/cpython/blob/3.12/Lib/statistics.p... [2]: https://github.com/python/cpython/blob/3.12/Lib/collections/__init__.py https://github.com/python/cpython/blob/3.12/Lib/collections/...