def current(self, newindex=None):
        if newindex is None:
            return self.tk.getint(self.tk.call(self._w, "current"))
        return self.tk.call(self._w, "current", newindex)
If newindex is supplied, sets the combobox value to the
dataset/ETHPy150Open francelabs/datafari/windows/python/Lib/lib-tk/ttk.py/Combobox.current