Terry J. Reedy added the comment:
Ned, PR-14616 replaces a dead link to the most important online Tkinter reference. Please consider cherry-picking the 3.7 backport (already merged) into the upcoming 3.7.4. Many people are lost without the reference, as they find reading the tcl/tk reference much harder. (The question has come up on Stackoverflow also.)
I checked that the new link in the rebuilt revised page works.
The longer term solution is a complete in-house doc. I have some ideas, which I will share later, for something more compact than the Shipman work (168 pages for the pdf).
Ned, a separate question is whether the link fix or a local replacement can be backported to 3.6. It is like having half the tkinter doc, the part covering tk widgets, removed.
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nosy: +benjamin.peterson, larry, lukasz.langa, ned.deily -gpolo, miss-islington
priority: normal -> release blocker
stage: patch review ->
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Python tracker
https://bugs.python.org/issue37149
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