ThinkPython Exercise 9.3

[buran]

@braun - I was using Python 3 originally but had trouble installing the Turtleworld module. I saw on some online forum saying that Turtle was incompatible with Python 3 so I switched to Python 2 but am still having issues.

IMHO using packages/frameworks like Turtle in education is non-sense.
Given that because of this you had to switch python2 only proves me right. Just find another tutoring material and work on python3 (my understanding is Turtle is not requirement imposed on you by teacher/school)

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Based on this:
https://greenteapress.com/wp/think-python-2e/
Second edition is targeted at python3

This does not change my principle opinion on swampy/Turtle... i.e. packages written by the author for the single purpose to teach using them... It only confuses...