Python Turtle

Python Turtle

• It is a Python library by which we can create and draw various types of shapes and images.
• Turtle contains the following methods.

forward()

• This function moves the turtle forward by the specified amount.
• It takes single parameter.
• fd() function also works same as forward()

#import turtle library
import  turtle
turtle.forward(160)
turtle.done()

backward()

• This function moves the turtle backward by the specified amount.
• It takes single parameter.
• bk() function also works same as backward()

#import turtle library
import  turtle
turtle.backward(160)
turtle.done()

right()

• This function Turns the turtle clockwise.
• It takes single parameter as an angle.
• rt() function also works same as right()

#import turtle library
import  turtle
#move the turtle by 160
turtle.forward(160)
#turns the turtle clockwise by 90 degree
turtle.right(90)
#then moves the turtle by 50
turtle.forward(50)
turtle.done()

left()

• This function Turns the turtle counter clockwise.
• It takes single parameter as an angle.
• lt() function also works same as left()

#import turtle library
import  turtle
#move the turtle by 160
turtle.forward(160)
#turns the turtle counter
#clockwise by 90 degree
turtle.left(90)
#then moves the turtle by 50
turtle.forward(50)
turtle.done()

color()

• This function changes the color of turtle's pen.
• It takes two parameter as a color.

#import turtle library
import  turtle
#changing color red to green
turtle.color("red","green")
#move the turtle by 160
turtle.forward(160)
turtle.done()

pencolor()

• This function is used to set the color of turtle's pen.
• It takes single parameter as a color.

#import turtle library
import  turtle
#set pencolor to orange
turtle.pencolor("orange")
#move the turtle by 160
turtle.forward(160)
turtle.done()

pensize()

• This function is used to set the color of turtle's pen.
• It takes single parameter as a color.

#import turtle library
import  turtle
#set pencolor to orange
turtle.pencolor("orange")
turtle.pensize(5)
#move the turtle by 160
turtle.forward(160)
turtle.done()

Draw Square

#import turtle library
import  turtle
#set background to black
turtle.bgcolor("black")
#set pencolor to orange
turtle.pencolor("yellow")
#using loop
for i in range(0,4):
    turtle.fd(100)
    turtle.lt(90)
turtle.done()

Draw Rectangle

#import turtle library
import  turtle
#set background to black
turtle.bgcolor("black")
#set pencolor to orange
turtle.pencolor("yellow")
#using loop
for i in range(0,2):
    turtle.fd(100)
    turtle.lt(90)
    turtle.fd(50)
    turtle.lt(90)
turtle.done()

Draw Circle

#import turtle library
import  turtle
#set background to black
turtle.bgcolor("black")
#set pencolor to orange
turtle.pencolor("yellow")
#using loop
for i in range(0,360,1):
    turtle.forward(1)
    turtle.left(1)
turtle.done()

Draw Triangle

#import turtle library
import  turtle
#set background to black
turtle.bgcolor("black")
#set pencolor to orange
turtle.pencolor("yellow")
#using loop
for i in range(0,3):
    turtle.left(120)
    turtle.forward(90)
turtle.done()

Square within square

#import turtle library
import  turtle
#set background to black
turtle.bgcolor("black")
#set pencolor to orange
turtle.pencolor("yellow")
turtle.color("yellow","green")
#change pen shape
turtle.shape("turtle")
turtle.pensize(2)
#using loop
j=200
for i in range(0,17,1):
    turtle.forward(j)
    j=j-10
    turtle.left(90)

turtle.done()

Draw Hexagon

#import turtle library
import  turtle
#set background to black
turtle.bgcolor("black")
#set pencolor to orange
turtle.pencolor("yellow")
turtle.color("yellow","green")
#change pen shape
turtle.shape("turtle")
turtle.pensize(2)
for i in range(0,6):
    turtle.forward(100)
    turtle.left(60)
turtle.done()

Draw Star

#import turtle library
import  turtle
#set background to black
turtle.bgcolor("black")
#set pencolor to orange
turtle.pencolor("yellow")
turtle.color("yellow","green")
#change pen shape
turtle.shape("turtle")
turtle.pensize(2)
for i in range(5):
    turtle.forward(200)
    turtle.right(144)
turtle.done()

Shape 1

#importing turtle library
from turtle import *
import  turtle
color('orange', 'yellow')
#set backgroud color
turtle.bgcolor("black")
begin_fill()
while True:
    forward(200)
    left(170)
    if abs(pos()) < 1:
        break
end_fill()
done()

Output 

 Shape 2

import  turtle
import  time
def myFun():
    colors=["red","blue","green","yellow","orange","brown"]
    t=turtle
    t.pensize(5)
    t.bgcolor('black')
    t.speed(1000)
    for x in range(360):
        t.pencolor(colors[x%len(colors)])
        t.pensize(x/50)
        t.forward(x)
        t.left(59)
myFun()
time.sleep(5)

Output 

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