bpo-38326: Use Python API version as config version #16496
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This allows the config APIs to detect attempts to embed all potentially ABI incompatible runtime versions, rather than only being able to detect incompatibilities in the size of the PyPreConfig and PyConfig structures.
zooba
reviewed
Sep 30, 2019
ncoghlan
commented
Sep 30, 2019
ncoghlan
commented
Sep 30, 2019
pitrou
reviewed
Sep 30, 2019
| /* Version of the CPython header files used to compile the embedding | ||
| application. Expected to be set to PY_VERSION_HEX. | ||
| Field is used to check for API and ABI compatibility. */ | ||
| uint32_t header_version; |
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Why uint32_t? Your PEP changes say size_t.
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Typo on the PEP PR side (I renamed struct_size without fixing the type).
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I proposed PR #16500 to remove struct_size. |
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Closing in favour of #16500 Edit to save a click: #16500 reverts the struct_size change entirely for now. It does mean version mismatches may segfault rather than produce a nice error message, but there are other less intrusive ways for us to help with that (e.g. provide a public variant of the ABI compatibility checking function in this PR) |
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This allows the config APIs to detect attempts to embed
all potentially ABI incompatible runtime versions, rather
than only being able to detect incompatibilities in the
size of the PyPreConfig and PyConfig structures.
https://bugs.python.org/issue38326