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by thristian
406 days ago
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No, Python's current type annotation syntax was added in Python 3.0 as a generic annotation syntax, in the hope that somebody else might come along and build a type-checker or other tooling on top: https://peps.python.org/pep-3107/ MyPy was one such tool, and I think it had conventions for adding type annotations in comments, in places where Python didn't yet support them (such as variable assignment), but I'm pretty sure it was never a TypeScript-style pre-processor - type-annotated programs always ran directly in the unmodified CPython interpreter. |
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