[issue40051] Give proper link in help(idlelib/turtledemo/tkinter.sub/test_*/?)

[Zachary Ware]

Zachary Ware <zachary.ware at gmail.com> added the comment:

Option 4: generate a list of modules (or a mapping of module names to documentation files) that have documentation when generating Lib/pydoc_data/topics.py, and teach pydoc.help to not include the link when it knows the module doesn't have documentation.

This is a much more complete solution that also avoids creating links for private modules (see bpo-45717), but is significantly more effort to implement.

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nosy: +zach.ware

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