It makes sense I guess mostly if Python doesn't have good third party library ty... | Hacker News

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		throwaway290 52 days ago \| parent \| context \| favorite \| on: Use Your Type System It makes sense I guess mostly if Python doesn't have good third party library typechecking... But how would beartype catch it? I mean a runtime error is a runtime error... You trade one for another?

Ey7NFZ3P0nzAe 51 days ago [–]

Beartype does not catch errors, it checks before they happen.

Basically it's pure python ultra optimized code that calls "isinstance(a, b)" all the time everywhere. If there is a mismatch it crashes.

Note that you can also set it to warn instead of crash.

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