Method ok

Lib/idlelib/query.py:139–151

If entry is valid, bind it to 'result' and destroy tk widget. Otherwise leave dialog open for user to correct entry or cancel.

(self, event=None)

        return entry

    def ok(self, event=None):  # Do not replace.
        '''If entry is valid, bind it to 'result' and destroy tk widget.

        Otherwise leave dialog open for user to correct entry or cancel.
        '''
        self.entry_error['text'] = ''
        entry = self.entry_ok()
        if entry is not None:
            self.result = entry
            self.destroy()
        else:
            # [Ok] moves focus.  (<Return> does not.)  Move it back.
            self.entry.focus_set()

    def cancel(self, event=None):  # Do not replace.
        "Set dialog result to None and destroy tk widget."