Does anyone know how the hashing function for objects works exactly? You can find online the answers for integers and strings, but not objects.
Can anyone help me?
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1Integers and strings are objects – roganjosh Oct 08 '19 at 20:26
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It calls the class's `__hash__` method. – Barmar Oct 08 '19 at 20:27
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It has to do with the way the object implemented the `__hash__` protocol – smac89 Oct 08 '19 at 20:27
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yes but integers are mod N, string use polynomial expansion to create hash functions. Objects I have no idea – Trajan Oct 08 '19 at 20:27
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@smac89 which is what exactly? this is the question. anyone can just call hash() and hope – Trajan Oct 08 '19 at 20:27
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Objects are composed of strings, tuples, integers, etc...so the hash of an object is simply a mixture of the hash of it's content – smac89 Oct 08 '19 at 20:27
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@smac89 still not clear to me exactly though – Trajan Oct 08 '19 at 20:28
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Unfortunately, the duplicate answer does not show good example of `__hash__`. Maybe this one will help: https://stackoverflow.com/questions/2909106/whats-a-correct-and-good-way-to-implement-hash – smac89 Oct 08 '19 at 20:36
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*Everything* in Python is an object, so you'll have to specify exactly the types you are interested in. – juanpa.arrivillaga Oct 08 '19 at 22:04
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@smac89 an object need not consist of any of those things, and need not hash on its content. – juanpa.arrivillaga Oct 09 '19 at 00:05