[issue14117] Turtledemo: exception and minor glitches.

[Terry J. Reedy]

Terry J. Reedy added the comment:

Added #21933, change text font size, as dependency.
Added new #22051 remove reload, as dependency.
#18132: stop demo buttons from disappearing, was fixed by #21507 patch.

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dependencies: +Allow the user to change font sizes with the text pane of turtledemo, Turtledemo: stop reloading demos

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<http://bugs.python.org/issue14117>
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