python tkinter event not working for entry within a frame

Question

I have an entry that's within a frame. I want to pass an event from that entry.

Here is code that works, but does not include an entry in a frame:

import tkinter as tk
myUi= tk.Tk()
myFrame = tk.Frame(myUi)
myFrame.pack()
def printMe(event):
    value = event.widget.get()
    print(value)
myEntry = tk.Entry(myUi,name='entry')
myEntry.bindtags(('.entry','Entry'))
myEntry.bind("<KeyRelease>", printMe)
myEntry.pack()
myUi.mainloop()

Here is code that doesn't work:

import tkinter as tk
myUi= tk.Tk()
myFrame = tk.Frame(myUi)
myFrame.pack()
def printMe(event):
    value = event.widget.get()
    print(value)
myEntry = tk.Entry(myFrame,name='entry')
myEntry.bindtags(('.entry','Entry'))
myEntry.bind("<KeyRelease>", printMe)
myEntry.pack()
myUi.mainloop()

Bryan Oakley · Accepted Answer · 2018-12-27 23:10:29Z

1

When you put the entry in a frame, it's binding tag contains it's own name plus the name of its ancestors separated by periods. In this specific case, the binding tag for the entry is .!frame.myentry. You can see this by printing out the default bindtags before you change them (eg: print(str(myEntry)))

Since you are changing the binding tags for the entry to be ('.entry', 'Entry'), any bindings on the widget itself (ie: on the binding tag .!frame.entry) will not be associated with the widget.

answered Dec 27, 2018 at 23:10

Bryan Oakley

389k53 gold badges582 silver badges739 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

python tkinter event not working for entry within a frame

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related