New submission from Daniel McCarney <dan...@binaryparadox.net>:
Hi there, This is my first Python bug, hope I haven't missed anything important. I noticed that the PyFunction_GetAnnotations function from the C API is returning a PyTuple when I link Python 3.10 where historically it returned a PyDict. The documentation for PyFunction_GetAnnotations for 3.10 (here[0]) says its return can be: > a mutable dictionary or NULL I'm not sure if: * This is user error and I should adapt to this case in my dependent code when using Python 3.10+. * This is a documentation error, and it should say "a mutable dictionary, set, or NULL" * This is a regression in the C API that should be fixed. I've made a small reproduction program (here[1]) that can be used to quickly demonstrate the difference in return type between the two Python versions for the same C program and .py inputs. I also noticed that issue42202 (here[2]) landed an optimization in 3.10.x that changed the internal representation of annotations to a set - could that possibly be related? I'm not 100% sure! Thanks! [0]: https://docs.python.org/3/c-api/function.html#c.PyFunction_GetAnnotations [1]: https://github.com/cpu/pyfunction_getannotations_test [2]: https://bugs.python.org/issue42202 ---------- components: C API messages: 409555 nosy: cpu priority: normal severity: normal status: open title: PyFunction_GetAnnotations returning Tuple vs Dict versions: Python 3.10 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46236> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
