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-rw-r--r--Modules/_tkinter.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/Modules/_tkinter.c b/Modules/_tkinter.c
index 47edf62..601a70c 100644
--- a/Modules/_tkinter.c
+++ b/Modules/_tkinter.c
@@ -604,6 +604,10 @@ Tkapp_Call(self, args)
for (i = 0; i < objc; i++) {
PyObject *v = PyTuple_GetItem(args, i);
+ if (v == Py_None) {
+ objc = i;
+ break;
+ }
objv[i] = AsObj(v);
if (!objv[i])
goto finally;