Python tkInter Entry fun

Question

Playing around with Python - tkInter - Entry widget - when I use validatecommand (below), the check happens the first time the string > Max, but when I continue to enter tex

Answer 1

I'm sure exactly what the reason is, but I have a hunch. The validation check is done every time the entry is edited. I did some testing and found that it does indeed execute, and can do all sorts of things during the validation every time. What causes it to stop working correctly is when you edit it from within the validatecommand function. This causes it to stop calling the validate function any further. I guess it no longer recognizes further edits to the entry value or something.

lgal Serban seems to have the behind the scenes info on why this occurs.