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fix: Use PyObject_VisitManagedDict() of Python 3.13 (#4973)

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* fix: Use PyObject_VisitManagedDict() of Python 3.13

Use PyObject_VisitManagedDict() and PyObject_ClearManagedDict() in
pybind11_traverse() and pybind11_clear() on Python 3.13 and newer.

* Add Python 3.13 CI

* tests: don't get numpy/scipy on 3.13 yet

* ci: move 3.13 to upstream

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>

---------

Signed-off-by: Henry Schreiner <henryschreineriii@gmail.com>
Co-authored-by: Henry Schreiner <HenrySchreinerIII@gmail.com>
This commit is contained in:
Victor Stinner
2023-12-15 03:42:55 +01:00
committed by GitHub
parent daea1130b4
commit dc477fac0e
4 changed files with 14 additions and 7 deletions
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8
include/pybind11/detail/class.h
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@@ -519,8 +519,12 @@ inline PyObject *make_object_base_type(PyTypeObject *metaclass) {
/// dynamic_attr: Allow the garbage collector to traverse the internal instance `__dict__`.
extern "C" inline int pybind11_traverse(PyObject *self, visitproc visit, void *arg) {
#if PY_VERSION_HEX >= 0x030D0000
PyObject_VisitManagedDict(self, visit, arg);
#else
PyObject *&dict = *_PyObject_GetDictPtr(self);
Py_VISIT(dict);
#endif
// https://docs.python.org/3/c-api/typeobj.html#c.PyTypeObject.tp_traverse
#if PY_VERSION_HEX >= 0x03090000
Py_VISIT(Py_TYPE(self));
@@ -530,8 +534,12 @@ extern "C" inline int pybind11_traverse(PyObject *self, visitproc visit, void *a
/// dynamic_attr: Allow the GC to clear the dictionary.
extern "C" inline int pybind11_clear(PyObject *self) {
#if PY_VERSION_HEX >= 0x030D0000
PyObject_ClearManagedDict(self);
#else
PyObject *&dict = *_PyObject_GetDictPtr(self);
Py_CLEAR(dict);
#endif
return 0;
}