Python Turtle Programs

 Awesome Turtle Graphic

import turtle

tur=turtle.Turtle()

scr=turtle.Screen()

scr.bgcolor('white')

x=30

y=0

Color =['red', 'purple', 'blue', 'green']

tur.speed(0)

tur.penup()

tur.goto(0,200)

#tur.pendown()

while True:

tur.circle(x)

tur.pencolor(Color[y%len(Color)])

if y==1:

tur.pendown()

tur.right(90)

tur.goto(0,90)

x +=1

y +=1

if y==100:

break

turtle.done()

Output: