Tkinter — executing functions over time

Question

I\'m trying to figure out how the tkinter control flow works.

I want to display a rectangle and to make it blink three times. I wrote this code, but it doesn\'t work

Answer 1

Each widget has an 'after' function - that is to say it can call a another function after a specified time period - So, what you would want to do is call:

root.after( 1000, blink )

If you want it to be a repeating call, just call 'after' again inside your blink function. The only problem you will have is passing arguments to blink - maybe look at using lamda inside of 'after' for that.