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Support PyType_GetModuleName and PyType_GetFullyQualifiedName? #188
Description
Those currently marked as unsupported, despite being part of the Limited API. And it looks, according to the docs, implementations should be possible. Or I miss something obvious?
PyType_GetModuleName
Return the type's module name. Equivalent to getting the :attr:
type.__module__attribute.
Possible implementation:
PyObject *
PyType_GetModuleName(PyTypeObject *type)
{
return PyObject_GetAttrString((PyObject *)type, "__module__");
}PyType_GetFullyQualifiedName
Return the type's fully qualified name. Equivalent to
f"{type.__module__}.{type.__qualname__}", or :attr:type.__qualname__if :attr:type.__module__is not a string or is equal to"builtins".
(Looking on the actual code, it seems that docs are inaccurate as the alternative happens also if a string is equal to __main__.)
Possible implementation:
PyObject *
PyType_GetFullyQualifiedName(PyTypeObject *type)
{
PyObject *qualname = PyType_GetQualName(type);
if (qualname == NULL) {
return NULL;
}
PyObject *module = PyType_GetModuleName(type);
if (module == NULL) {
Py_DECREF(qualname);
return NULL;
}
PyObject *result;
if (PyUnicode_Check(module)
&& !PyUnicode_EqualToUTF8(module, "builtins")
&& !PyUnicode_EqualToUTF8(module, "__main__"))
{
result = PyUnicode_FromFormat("%U.%U", module, qualname);
}
else {
result = Py_NewRef(qualname);
}
Py_DECREF(module);
Py_DECREF(qualname);
return result;
}
Activity
Add PyImport_ImportModuleAttr()
Add PyImport_ImportModuleAttr() and PyType_GetQualName()
Add PyImport_ImportModuleAttr() and PyType_GetQualName()
vstinner commentedon Oct 8, 2026
Hi,
I add functions on a case by case. Someone has to implement these new functions, write tests, update the doc. It's not free :-)
Supporting PyType_GetModuleName() and PyType_GetFullyQualifiedName() is reasonable. I implemented it in #189 with 3 other functions.