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A comment on In CPython, types implemented in C are part of the type tree. Parent comment

Re:In CPython, types implemented in C are part of the type tree by Too on Friday December 25, 2020 @03:51AM (#25535210)
We already have TypedPython. It's called Mypy, and any organization doing serious or larger scale Python development should already have this hooked up to their CI.

Together with Pycharm you get almost same level of fearless refactoring only C# or Java can offer.

It's a bit shocking to see people not using it or not even being aware of it's existence, because without it large codebases quickly become a steaming pile of unsafe mess.

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Re:In CPython, types implemented in C are part of the type tree by abcxjeb284 on Friday December 25, 2020 @11:37AM (#25537381)
Agreed, strict use of mypy with editor support is a game changer (particularly its union types and TypedDict)
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