gh-106320: Move private _PyHash API to the internal C API#107026
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* No longer export most private _PyHash symbols, only export the ones which are needed by shared extensions. * Modules/_xxtestfuzz/fuzzer.c now uses the internal C API.
illia-v added a commit to illia-v/oss-fuzz that referenced this pull request Jul 28, 2023
`Modules/_xxtestfuzz/fuzzer.c` in CPython started using private API in python/cpython@89f9875#diff-a22ac7579f23068e0c6bcacf1086ee962fdf8e68725cf0510b42d0a389cf1efd. This made fuzzing builds fail https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=60831. Including needed header files fixes the error.
jonathanmetzman pushed a commit to google/oss-fuzz that referenced this pull request Jul 31, 2023
`Modules/_xxtestfuzz/fuzzer.c` in CPython started using private API in python/cpython@89f9875#diff-a22ac7579f23068e0c6bcacf1086ee962fdf8e68725cf0510b42d0a389cf1efd. This made fuzzing builds fail https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=60831. Including needed header files fixes the error.
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skirpichev commented Oct 23, 2023
Again, as in #108604, the gmpy2 uses some parts of this API, e.g. to hash mpz like int. Meanwhile I did gmpy2/gmpy2#441 to workaround removed API. @vstinner, what we could do instead? |
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vstinner commented Oct 27, 2023
Would you mind to open a new issue, give the exhaustive list of functions that you need, and which API do you expect? |
skirpichev added a commit to skirpichev/cpython that referenced this pull request Oct 28, 2023
…public This partially reverts python#107026.
dmrlawson pushed a commit to dmrlawson/capnpy that referenced this pull request Jun 9, 2025
_Py_HashBytes was hidden in 3.13 (python/cpython#107026). > C assumes that any function with an "implicit declaration" returns an int, which'll be smaller than a Py_hash_t, hence the different results. (https://groups.google.com/g/cython-users/c/YQkU8oc8oSM/m/nVJ_IX8KAgAJ)
dmrlawson pushed a commit to dmrlawson/capnpy that referenced this pull request Jun 9, 2025
_Py_HashBytes was hidden in 3.13 (python/cpython#107026). > C assumes that any function with an "implicit declaration" returns an int, which'll be smaller than a Py_hash_t, hence the different results. (https://groups.google.com/g/cython-users/c/YQkU8oc8oSM/m/nVJ_IX8KAgAJ)
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