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Created on 2016-04-06 07:59 by rhettinger, last changed 2022-04-11 14:58 by admin. This issue is now closed.
| Messages (5) | |||
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| msg262940 - (view) | Author: Raymond Hettinger (rhettinger) *  |
Date: 2016-04-06 07:59 | |
It would be nicer if this worked:
>>> hashlib.md5.digest_size
64
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| msg266761 - (view) | Author: Gregory P. Smith (gregory.p.smith) * |
Date: 2016-05-31 16:52 | |
+cc Christian Heimes: do the upcoming standard hash functions amenable to a constant class attribute digest_size? Are any of the expected future hashes variable length from a single class / constructor function? |
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| msg266762 - (view) | Author: Christian Heimes (christian.heimes) * |
Date: 2016-05-31 17:01 | |
Not all hash functions have a fixed digest size, e.g. blake2 is a variable length hash algorithm. https://pythonhosted.org/pyblake2/examples.html#using-different-digest-sizes How about a new class attribute default_digest_size? |
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| msg275441 - (view) | Author: Gregory P. Smith (gregory.p.smith) * |
Date: 2016-09-09 21:05 | |
I agree that adding a .default_digest_size attribute to the constructors in the hashlib module would be good... the challenge is in actually doing it. Today they are not classes, they are built-in functions that come from one of two possible extension modules. Adding properties to a built-in function is a challenge (I don't think that is even possible in the C API, PyMethodDef doesn't support that). We could hack around it, wrap them in classes, etc. But they have never been classes and there is little good reason for them to be a type. |
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| msg293175 - (view) | Author: Gregory P. Smith (gregory.p.smith) * |
Date: 2017-05-06 22:50 | |
I'm rejecting this one as low value / infeasible. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:58:29 | admin | set | github: 70887 |
| 2017-05-06 22:50:43 | gregory.p.smith | set | status: open -> closed messages: + msg293175 assignee: gregory.p.smith -> resolution: rejected stage: resolved |
| 2016-09-09 21:05:03 | gregory.p.smith | set | messages: + msg275441 |
| 2016-05-31 17:01:22 | christian.heimes | set | messages: + msg266762 |
| 2016-05-31 16:52:44 | gregory.p.smith | set | nosy:
+ christian.heimes messages: + msg266761 |
| 2016-04-06 07:59:10 | rhettinger | create | |