def get(self, name=None, label=None, id=None, nr=None,
            exclude_disabled=False):
        if nr is None and self._form.backwards_compat:
            nr = 0  # :-/
        items = self.get_items(name, label, id, exclude_disabled)
        return disambiguate(items, nr, name=name, label=label, id=id)
Return item by name or label, disambiguating if necessary with nr.
dataset/ETHPy150Open deanhiller/databus/webapp/play1.3.x/samples-and-tests/i-am-a-developer/mechanize/ClientForm.py/ListControl.get