[issue12723] Provide an API in tkSimpleDialog for defining custom validation functions

[Andrew Svetlov]

Andrew Svetlov <andrew.svetlov at gmail.com> added the comment:

I think we have to reject this issue.
Adding generic validation make sense, but adding just permanent check for non-empty string is wrong.

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nosy: +asvetlov

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12723>
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