Draw Rainbow Circles with Python Turtle | Python Turtle Graphics Tutorial#13 |Draw Designs in Pytho

In this video I have explained line by line how to draw rainbow circles in python using turtle library.
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SOURCE CODE:

import turtle

mypen = turtle.Turtle()#object of turtle
mypen.speed(0)

window = turtle.Screen()
window.bgcolor('white')
colors = ['red', 'orange', 'yellow', 'green', 'blue', 'indigo', 'violet']
size = 300 #radius of circle
mypen.penup()
mypen.goto(250, -300)
mypen.pendown()
for i in range(7):
mypen.color(colors[i])
mypen.fillcolor(colors[i])
mypen.begin_fill()
mypen.circle(size)
mypen.end_fill()
size -= 20
mypen.hideturtle()
turtle.done()
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