[issue22115] Add new methods to trace Tkinter variables

[Terry J. Reedy]

Terry J. Reedy added the comment:

I gather that 'add', 'delete', and 'info' replace 'variable', 'vdelete', and 'vinfo'.  Also see review.  Deprecation period should be fairly long.  Of course, a currently hypothetical tcl/tk 9.0 with old stuff gone would make it immediate for users of 9.0.

Applies cleanly and tests pass, but do not hardly interact with the patch.  More importantly, IDLE starts fresh, option dialog comes up and appears to work.  So old functions continue to work.

The real test from IDLE would be to recode configdialog to use the new functions and then test.  I am thinking about how to test configdialog enough that I am willing to refactor it for real.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue22115>
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