[issue1702036] Make Turtle thread-safe so it does not crash

[Terry J. Reedy]

Changes by Terry J. Reedy <tjreedy at udel.edu>:


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title: Turtle isn't thread-safe (crashes) -> Make Turtle thread-safe so it does not crash
versions: +Python 3.2 -Python 2.7, Python 3.1

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue1702036>
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