I am trying to get the parent of a widget then get the parent of that widget. But Everytime I try to I get a error.

Error:

AttributeError: 'str' object has no attribute '_nametowidget'

Why is it giving me that error. Can someone explain to me why I am getting this error and help me to fix it?

Code:

parent = event.widget.winfo_parent()
parentName = event.widget._nametowidget(parent)frameParent = parentName.winfo_parent()
frameParentName = frameParent._nametowidget(frameParent)

grandparent = event.widget.master.master

See the answer here.