[issue21882] turtledemo modules imported by test___all__ cause side effects or failures

[Terry J. Reedy]

Terry J. Reedy added the comment:

I am working on the turtle demos now. Victor gave more info in #21884.

I was partly wrong in my comments. turtledemo uses reload to re-initialize demos when one switches between them. I am tempted to remove this as part of discouraging side-effects on import. It is not a good example to be followed.

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assignee:  -> terry.reedy

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<http://bugs.python.org/issue21882>
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