[issue21402] tkinter.ttk._val_or_dict assumes tkinter._default_root exists

[Zachary Ware]

Zachary Ware added the comment:

Can you provide an example of when this happens?  Note that tkinter.ttk._val_or_dict is a private function and should not be called by user code.

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nosy: +gpolo, serhiy.storchaka, zach.ware
stage:  -> test needed
type: crash -> behavior

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21402>
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