Ignore widgets with unknown names in winfo_children. Fixes #518283.
2.2.2 candidate.
diff --git a/Lib/lib-tk/Tkinter.py b/Lib/lib-tk/Tkinter.py
index 65d8187..f35cbd8 100644
--- a/Lib/lib-tk/Tkinter.py
+++ b/Lib/lib-tk/Tkinter.py
@@ -605,9 +605,17 @@
self.tk.call('winfo', 'cells', self._w))
def winfo_children(self):
"""Return a list of all widgets which are children of this widget."""
- return map(self._nametowidget,
- self.tk.splitlist(self.tk.call(
- 'winfo', 'children', self._w)))
+ result = []
+ for child in self.tk.splitlist(
+ self.tk.call('winfo', 'children', self._w)):
+ try:
+ # Tcl sometimes returns extra windows, e.g. for
+ # menus; those need to be skipped
+ result.append(self._nametowidget(child))
+ except KeyError:
+ pass
+ return result
+
def winfo_class(self):
"""Return window class name of this widget."""
return self.tk.call('winfo', 'class', self._w)