Question

So there I was just messing around in an interpreter when I came across a strange problem. I was just trying to make a bouncing smiley face to brighten my day, but for some reason I’m unable to do this. And I have no desire to do this in Pygame, if anyone thinks to suggest that. This isn’t a project, it was just something silly I was doing and don’t understand why it’s not working.

from Tkinter import *
import time,random

root = Tk()
root.geometry("500x500")
root.mainloop()
bouncer = Label(root, text="=D")

def bounce ():
    X = random.randint(1,500)
    Y = random.randint(1,500)
    bouncer.place(x=X, y=Y)

while True:
    time.sleep(0.5)
    bounce()

This code does not work, and I for the life of me can’t figure out why. What ends up happening is the loop runs forever, and when I ^C bounce() gets called once and the script ends. I tried it in a for loop to see if I could just bounce 100 times, but bounce() would just call once after the loop finished. I’m fairly stumped on this.

Any ideas, anyone?

Answer 1

sleep puts the process to the sleep state. Better use after.

from Tkinter import *
import time,random

root = Tk()
root.geometry("500x500")
bouncer = Label(root, text="=D")

def bounce ():
    X = random.randint(1,500)
    Y = random.randint(1,500)
    bouncer.place(x=X, y=Y)
    root.after(1000, bounce)

bounce()
root.mainloop()