[richard_todd]

I think it's interesting that PEP 484 says ([1]): "the authors have no desire to ever make type hints mandatory, even by convention," while the opening of this article says "type hints have grown from a nice-to-have to an expectation for popular packages." Things don't always work out the way the PEP authors expect.

[1]: https://www.python.org/dev/peps/pep-0484/

[kkirsche]

It’s the most demoralizing aspect as even just typing the standard library online documentation and examples (such as Emil autoname example) would be extremely valuable.