PyPySide: Fix a crash with PyPy 7.3.10 and 7.3.11

The PyPy installation had no problems with the built-in _functools module, which
we still use in favor of the official functools module, which is slower and can be
manipulated. The _functools module is no longer found in PyPy, and speed issues
do not apply.

[ChangeLog][shiboken6] A PyPy problem with version 7.3.10 and up was fixed.

Change-Id: Ie064d803d3fbf0f4ca226329b4d317db2a44c045
Fixes: PYSIDE-2264
Task-number: PYSIDE-535
Pick-to: 6.5
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>

2 files changed, 12 insertions, 2 deletions

diff --git a/sources/shiboken6/libshiboken/sbkenum.cpp b/sources/shiboken6/libshiboken/sbkenum.cpp
index 9b416886f..fb70a1c8f 100644
--- a/sources/shiboken6/libshiboken/sbkenum.cpp
+++ b/sources/shiboken6/libshiboken/sbkenum.cpp
@@ -1065,11 +1065,16 @@ static PyObject *create_missing_func(PyObject *klass)
 {
     // When creating the class, memorize it in the missing function by
     // a partial function argument.
+#ifdef PYPY_VERSION
+    const char *functools_str = "functools";
+#else
+    const char *functools_str = "_functools";
+#endif
     static auto *const type = SbkType_FromSpec(&dummy_spec);
     static auto *const obType = reinterpret_cast<PyObject *>(type);
     static auto *const _missing = Shiboken::String::createStaticString("_missing_");
     static auto *const func = PyObject_GetAttr(obType, _missing);
-    static auto *const functools = PyImport_ImportModule("_functools");   // builtin
+    static auto *const functools = PyImport_ImportModule(functools_str);   // builtin
     static auto *const _partial = Shiboken::String::createStaticString("partial");
     static auto *const partial = PyObject_GetAttr(functools, _partial);
     return PyObject_CallFunctionObjArgs(partial, func, klass, nullptr);
diff --git a/sources/shiboken6/libshiboken/sbkfeature_base.cpp b/sources/shiboken6/libshiboken/sbkfeature_base.cpp
index 63b5d9e57..d732faa29 100644
--- a/sources/shiboken6/libshiboken/sbkfeature_base.cpp
+++ b/sources/shiboken6/libshiboken/sbkfeature_base.cpp
@@ -178,7 +178,12 @@ void initEnumFlagsDict(PyTypeObject *type)
 
 static PyObject *replaceNoArgWithZero(PyObject *callable)
 {
-    static auto *functools = PyImport_ImportModule("_functools");   // builtin
+#ifdef PYPY_VERSION
+    const char *functools_str = "functools";
+#else
+    const char *functools_str = "_functools";
+#endif
+    static auto *functools = PyImport_ImportModule(functools_str);   // builtin
     static auto *partial = PyObject_GetAttrString(functools, "partial");
     static auto *zero = PyLong_FromLong(0);
     return PyObject_CallFunctionObjArgs(partial, callable, zero, nullptr);