conway's game of life

[Ofnuts]

This one;

def movesquare(event): # detect movement keys
   if event.keysym == "Up":
       canvas.move(SQident, 0, -50)
   elif event.keysym == "Down":
       canvas.move(SQident, 0, 50)
   elif event.keysym == "Left":
       canvas.move(SQident, -50, 0)
   elif event.keysym == "Right":
       canvas.move(SQident, 50, 0)        

is begging for a dictionary:

moves={'Up':(0, -50),'Down':(0,50), 'Left':(-50,0), 'Right':(50,0)}
def movesquare(event): # detect movement keys
   x,y=moves[event.keysym]
   canvas.move(SQident,x,y)

There is even a way to replace the whole function by a one-liner but this can make the code a bit less readable.