[3.13] Document that PyModule_GetDef can return NULL with or without setting an excep...

(cherry picked from commit 289360ae63933c8956f87307ff091ec9ed19afed)

Co-authored-by: Petr Viktorin <encukou@gmail.com>

diff --git a/Doc/c-api/module.rst b/Doc/c-api/module.rst
index 811624e9a908bfe3cbd913c11cb5b1b9e6b7bed6..7ed6b4c908aad3a9a971f7cf354f3c5c397a40f7 100644 (file)
--- a/Doc/c-api/module.rst
+++ b/Doc/c-api/module.rst
@@ -102,6 +102,10 @@ Module Objects
    Return a pointer to the :c:type:`PyModuleDef` struct from which the module was
    created, or ``NULL`` if the module wasn't created from a definition.
 
+   On error, return ``NULL`` with an exception set.
+   Use :c:func:`PyErr_Occurred` to tell this case apart from a mising
+   :c:type:`!PyModuleDef`.
+
 
 .. c:function:: PyObject* PyModule_GetFilenameObject(PyObject *module)