import canvas
import time
from random import randint

circles = []
for i in range(5):
    new_dict = {"x" : randint(20,330),
    "y" : randint(20,330),
    "dx" : randint (5,-5),
    "dy" : randint(5,-5)}
    circles.append(new_dict)
    while True:
        canvas.clear()
        for g in circles:
            new_dict["x"] = new_dict["x"] + new_dict["dx"]
            new_dict["y"] = new_dict["y"] + new_dict["dy"]
            if new_dict["x"] > 330 or new_dict["x"] < 20:
                new_dict["dx"] = -new_dict["dx"]
            elif new_dict["y"] > 330 or new_dict["y"] < 20:
             new_dict["dy"] = -new_dict["dy"]
        else:
            pass
        canvas.circle(new_dict["x"], new_dict["y"], 20)
        canvas.draw()
        time.sleep(0.01)