I had tried the following script test.py:
--------
import tkinter as tk
class Demo(tk.Frame):
def __init__(self):
tk.Frame.__init__(self, name='demo')
self.pack()
panel = tk.Frame(self, name='panel')
panel.pack()
start = tk.Button(text='Start', name='start')
start.grid(in_=panel)
btn = self.nametowidget('panel.start')
btn.config(state='disabled')
Demo().mainloop()
--------
It fails on nametowidget() function. My intention is to use 'in_' to change the
parent of 'start' widget from the default Tk object to 'panel', but failed with
KeyError: 'start'.
below is part of the snapshot in pdb,
...
> d:\works\python\test.py(11)__init__()
-> start = tk.Button(text='Start', name='start')
(Pdb) !panel.winfo_parent()
'.demo'
(Pdb) next
> d:\works\python\test.py(12)__init__()
-> start.grid(in_=panel)
(Pdb) !start.winfo_parent()
'.'
(Pdb) next
> d:\works\python\test.py(14)__init__()
-> btn = self.nametowidget('panel.start')
(Pdb) !start.winfo_parent()
'.'
--Jach
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