[issue14117] Turtledemo: exception and minor glitches.

[Terry J. Reedy]

Terry J. Reedy added the comment:

#21823 fixed the Terminator issue 3 days ago.

#21597 is about making the text pane resizable.
The doc strings for peace, planet_and_moon, and tree need a bit of re-wrapping. The paint instruction is wrong. I am working on these now.

"Use mouse/keys or Stop" is a generic prompts for all 'special' demos that continue after xyz.main returns. keys is never right for the current set of demos.

The text for two_canvases does not load. I think this can be fixed.

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dependencies: +Allow turtledemo code pane to get wider., Catch turtle.Terminator exceptions in turtledemo
nosy: +rhettinger

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