CODEWITHSUNDEEP
pythonturtle-graphics
NibiruSpetsnaz
NibiruSpetsnaz

Reputation: 643

How to stop/end drawing in Turtle

Could someone tell how to stop the drawing of this figure in Python?

Modify this code so it stops drawing after a certain number of iterations:

import turtle
g = 134
l = 120
while True:
    turtle.speed('fastest')
    turtle.left(g)
    turtle.forward(l)

Count of iterations should be with input() when starting the program.

Upvotes: 0

Views: 1371

Answers (2)

coconut
coconut

Reputation: 115

Your code will run forever, since you have created an infinite while loop. To solve this, you can use a for loop. The number of iterations can be put in the range()

import turtle
turtle = turtle.Turtle()
g = 134
l = 120
iterations = int(input("..."))
for _ in range(iterations):
    turtle.speed('fastest')
    turtle.left(g)
    turtle.forward(l)

This way, the code will stop running after the specified iterations.

Upvotes: 0

Josh McCarter
Josh McCarter

Reputation: 61

Well your problem is that you have your turtle drawing in an infinite loop, you are never really stopping your program from running. when you say:

while True:
    turtle.speed('fastest')
    turtle.left(g)
    turtle.forward(l)

This is your infinite loop and without any set condition for this to stop it never will.Now to answer how you would be able to do this with a set number of iterations. You can do this one of two ways in while or a for loop. Most of the time if you want to run a certain block of code a set amount of times a for loop is your best bet.

import turtle
g = 134
l = 120
num_iter = input()
for i in range(num_iter):
    turtle.speed('fastest')
    turtle.left(g)
    turtle.forward(l)

Here for i in range(num_iter) this declares a for loop that runs num_iter amount of times. Hopefully this answers your question.

Upvotes: 3

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