Fix for bug #966623 - classes created with type() in an exec(, {}) don't
have a __module__. Test for this case.
Bugfix candidate, will backport.
diff --git a/Objects/typeobject.c b/Objects/typeobject.c
index 818572f..ee6e5d9 100644
--- a/Objects/typeobject.c
+++ b/Objects/typeobject.c
@@ -87,6 +87,10 @@
if (type->tp_flags & Py_TPFLAGS_HEAPTYPE) {
mod = PyDict_GetItemString(type->tp_dict, "__module__");
+ if (!mod) {
+ PyErr_Format(PyExc_AttributeError, "__module__");
+ return 0;
+ }
Py_XINCREF(mod);
return mod;
}