Turtle.done() Not Working In Spyder

This simple Python script: import turtle bob = turtle.Turtle() bob.forward(50) turtle.done() yields an error when running it using Spyder. The first run works as expected, but af

Solution 1:

I don't use Spyder but have exchanged comments with others who have similar problems running turtle in similar environments.

If you close the turtle graphics window, it's dead and won't reopen for you. Short of restarting Spyder, you can try adding a turtle.bye() (which cleans up some things) after turtle.done() (which returns after the main loop exits). Then try running your program multiple times.

Solution 2:

I was having trouble running a turtle graphics program more than once in Spyder, and I solved it by going to "Tools / Preferences". In the "Run" section, under "Console", select "Execute in a new dedicated Python console".

Solution 3:

This is because the turtle module (most reference implementations as of today) uses a class variable called _RUNNING. Class variables remain false between executions when running in environments like Spyder instead of running as a self-contained Python script. There are two work around for this:

1)

import importlib
import turtle
importlib.reload(turtle)
bob = turtle.Turtle()
bob.forward(50)
turtle.done()

import turtle
turtle.TurtleScreen._RUNNING=Truebob= turtle.Turtle()
bob.forward(50)
turtle.done()