[issue28498] tk busy command

[klappnase]

klappnase added the comment:

As far as I can see, most internal Tkinter methods use _getboolean(), which currently looks like:

    def _getboolean(self, string):
        """Internal function."""
        if string:
            return self.tk.getboolean(string)

I am not 100% sure about this, but I figure that when this was written it was intentional that if "string" is an empty string, it should return None instead of (back then) 0 or 1. Today this would probably translate into something like:

    def _getboolean(self, value):
        if not value in ('', None):
            return bool(self.tk.getboolean(value))

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue28498>
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