Message373295
| Author |
vstinner |
| Recipients |
Michael.Felt, corona10, miss-islington, petdance, ronaldoussoren, shihai1991, vstinner |
| Date |
2020年07月08日.09:06:12 |
| SpamBayes Score |
-1.0 |
| Marked as misclassified |
Yes |
| Message-id |
<1594199172.07.0.48977398326.issue40170@roundup.psfhosted.org> |
| In-reply-to |
| Content |
> New changeset 45ec5b99aefa54552947049086e87ec01bc2fc9a by Victor Stinner in branch 'master':
> bpo-40170: PyType_HasFeature() now always calls PyType_GetFlags() (GH-19378)
This change causes performance issues on macOS, see discussion starting at:
https://bugs.python.org/issue39542#msg372962
So I reverted the change. I will wait until my PEP 620 is accepted before considering to reapply it.
If it's reapplied, we have to make sure that Python internals currently using PyTuple_Check() still access directly PyTypeObject.tp_flags member. For example, a new _PyTuple_Check() function could be added and uses the internal _PyType_HasFeature() function. |
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