[issue35771] IDLE: Fix tooltip Hovertiptest failure

[Terry J. Reedy]

Terry J. Reedy <tjreedy at udel.edu> added the comment:

I had forgotten about this, but by coincidence, it occurred again today, on 'x86 Windows7 3.7' after PR-14919 was merged.  This may be the same machine as I might have left '7' off 'Windows' in the original report.

The 'windows timer' is used for time.sleep.  From various web articles, I read that its resolution varies from 10 to 25, defaults to 15.8 milleseconds in Win7 (this is the figure I knew years ago), and defaults to 35 microseconds in Win 10.  (Not exactly agreement.) time.sleep is hardly accurate for small fractions of a second delays, and delays may be much longer.  I believe that root.after does better.

Zachery, what OS and version do you have?

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