[issue31971] idle_test: failures on x86 Windows7 3.x

[Terry J. Reedy]

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

In build 129, which finished perhaps 3 hours ago, test_idle passed again.  I think we should merge the fix anyway in case 'hover' appears again on some machine.

A similar try:except is needed elsewhere.

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