#615772: raise a more explicit error from Tkinter.Misc.__contains__.
diff --git a/Lib/lib-tk/Tkinter.py b/Lib/lib-tk/Tkinter.py
index eb8fd44..5e3938d 100644
--- a/Lib/lib-tk/Tkinter.py
+++ b/Lib/lib-tk/Tkinter.py
@@ -1200,6 +1200,8 @@
__getitem__ = cget
def __setitem__(self, key, value):
self.configure({key: value})
+ def __contains__(self, key):
+ raise TypeError("Tkinter objects don't support 'in' tests.")
def keys(self):
"""Return a list of all resource names of this widget."""
return map(lambda x: x[0][1:],