[issue40893] tkinter: integrate TkDND support

[Terry J. Reedy]

Change by Terry J. Reedy <tjreedy at udel.edu>:


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components: +Tkinter
title: None -> tkinter: integrate TkDND support
type:  -> enhancement
versions: +Python 3.10

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue40893>
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