from turtle import Turtle
import random
import time

tina = Turtle()

# function to draw circle
def draw_circle(using,r,colr,x,y):
    using.penup()
    using.goto(x, y)
    using.pendown()
    using.dot(r * 2, colr)

# Lets draw 5 circles on screensize
for x in range(5):
    # co-ordinates
    a = random.randrange(-300,300, step=10)
    b = random.randrange(-300, 300, step = 10)
    # random colour
    clr = random.choice(["red", "blue", "green", "yellow"])
    # draw it
    draw_circle(tina,50, clr, a, b)

    # take a brief pause
    time.sleep(1)