def has_change_permission(self, request, obj=None):
        """ Only allow changing objects with even id number """
        return request.user.is_staff and (obj is not None) and (2 % obj.id == 0)
dataset/ETHPy150Open django/django/tests/admin_views/admin.py/RowLevelChangePermissionModelAdmin.has_change_permission/swapped operands of `%`