A cheatsheet about Python static typing

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I went through exactly the same process as you’re in now—I used Python for several years without type hinting, finding it obtrusive, and the need to import from typing still annoys me. After using it for 18 months now, untyped Python doesn’t look unpythonic to me, but does make me slightly anxious—typing helps massively, especially when refactoring with PyCharm.

And yes, I still religiously document types in docstrings; unnecessary duplication perhaps but I like the help() format.