Shell restarting rather than running code

Question

Trying to draw a straight line using

import turtle

def draw_line():
window =turtle.Screen()
window.bgcolor("blue")

animal=turtle.Turtle ()
animal.forward(100)

window.exitonclick()

draw_line()

but the shell keeps restarting and doesn't run the code. Help!

Answer 1

I tried to run your code as follows:

import turtle

def draw_line():
    window = turtle.Screen()
    window.bgcolor('blue')
    animal = turtle.Turtle()
    animal.forward(100)
    window.exitonclick()

draw_line()

And I can successfully run it.

I saved the above code in a file called turtle_test.py and ran it on the command line like this:

python turtle_test.py

For me that opens a new window with the expected output and it closes on click.

I tried it with both Python 2.6 and Python 3.5. Neither version had a problem with this script. One thing I have to mention though is that the window created by this script did not get focus automatically. I had to find it by Alt-Tab'ing, maybe that's your problem as well?

Also sorry for answering without a definitive answer, but it seems I need 'points' to be able to post a comment..