def value_from_object(self, obj, request):
        v = super(PasswordStoreField, self).value_from_object(obj, request)
        if v:
            return "*" + len(v)
        return v
dataset/ETHPy150Open lsaffre/lino/lino/core/store.py/PasswordStoreField.value_from_object/operator `*` -> `+`