I'm having trouble trying to make a kinetic scrolling canvas. The code looks something like this...

def scroll(acceleration, speed):
        while speed >= 0:
                canvas.xview_scroll(-speed, "units")
                speed -= acceleration

This doesn't update the drawing of the canvas in real-time (as in, every time xview_scroll is called)... it only updates the drawing after the while loop has already run, so you don't get to see it scroll, which is stupid. How can I get this to work properly?


Also, I have set keyboard shortcuts for some functions in my program. The functions these shortcuts call are also linked to menu items in the menu bar. How can I get the menu labels to reflect the keyboard shortcuts for each relative command? I know I can set the shortcut as a string in the label manually, but it will be stupid, not flush with the right edge of the menu, like in other programs.


Thanks for helping my program not be stupid
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