Libraries are collections of shared code. They're common in Python, where they're also called "modules," but they're also ...

Part of the reason the typing module was so slow was that there was an initial design goal to implement the typing module without modifying the core CPython interpreter.

Mypy, Pytype, Pyright, and Pyre can help you keep your type-hinted Python code bug-free. Let’s see what each of these useful tools has to offer.

I've grabbed Sequence from the typing module, which includes all three Python sequence types—strings, lists and tuples. Once I do that, all of the mypy problems disappear, because all of the arguments ...

Now, type hinting and the typing module are supported directly by the Python interpreter. Type hints in Python aren’t enforced at runtime.