Am 23.01.22 um 01:14 schrieb Jelle Zijlstra:
> I realize I never responded to this suggestion.
>
> Sebastian had a similar idea in
> https://github.com/python/typing/issues/277#issuecomment-961061916:
> use the warnings module to emit a message.
>
> Personally I don't care much for the exact runtime behavior, but I'm
> wary of making it too complicated. I don't feel like tracking down
> where a call comes from is a very compelling use case: it's easy to
> just grep for, and your type checker should give you an error for any
> call to reveal_type() anyway.

One advantage of using the warnings module is that it integrates well
with existing testing tooling. For example, you could configure pytest
to show or not show reveal_type() output, or even to throw an error.

  - Sebastian

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