Index: Modules/_tkinter.c
===================================================================
--- Modules/_tkinter.c	(révision 68194)
+++ Modules/_tkinter.c	(copie de travail)
@@ -2430,11 +2430,19 @@
 Tkapp_MainLoop(PyObject *selfptr, PyObject *args)
 {
 	int threshold = 0;
-	TkappObject *self = (TkappObject*)selfptr;
+	TkappObject *self;
 #ifdef WITH_THREAD
 	PyThreadState *tstate = PyThreadState_Get();
 #endif
 
+	if (PyModule_Check(selfptr)) {
+		self = NULL;
+		printf("module\n");
+	} else {
+		self = (TkappObject*)selfptr;
+		printf("object\n");
+	}
+
 	if (!PyArg_ParseTuple(args, "|i:mainloop", &threshold))
 		return NULL;