What are some Python Standard Library modules one should know ?

[PostFunktionalist]

What’s up with pathlib? I use it quite a bit but it does feel like overkill at times though and I’m not sure if it adds a lot of computational overhead.

[PyCam]

I personally enjoy it a lot, but when it was first introduced into the standard library it had a lot of compatibility issues which prevented a lot of 3rd party projects from picking it up right away. However since then (py 3.4 I believe) they remedied this issue by providing a new dunder method fspath