I'm using a Tkinter Text box in my Python (using 2.7.2) script as an entry-type box -- when enter is pressed, it copies the contents into a different text box and then deletes it out of the entry one.
I've bound the necessary event to the Text box when the Enter key is pressed. 
The only problem I have is that whenever I hit the Enter key, it seems to execute my event and then the widgets "default" binding: adding a newline. I'm not sure of a way to either delete the newline after it is added, or simply get rid of the widgets default binding. 
Thanks a lot!
Returning 'break' at the end of your event handler will interrupt event propagation.
Python Tkinter - Overwriting/Deleting "Default" Widget Bindings