Raise `TypeError` in pure Python `hmac.digest` for non-bytes keys
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@picnixz is already working on this.
Since Aug 9, 2026.
stdlib
type-bug
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- Python
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Description
Bug report
Bug description:
hmac.digest() reaches key.ljust() with a key type its own class rejects by name, so hmac.digest(memoryview(key), msg, "md5") raises AttributeError instead of TypeError as hmac.HMAC does. I'm aligning the exceptions here but I may consider accepting other types later.
CPython versions tested on:
CPython main branch
Operating systems tested on:
No response
Linked PRs
- gh-155427
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