1 [2, 3, 4]
Unhandled Exception: System.Exception: no slot x
   at IronPython.Objects.ReflectedType.SetAttr(Object self, String name, Object value)
   at IronPython.Objects.Ops.SetAttr(Object o, String name, Object value)
   at IronPython.Objects.Ops.SetAttrStackHelper(Object value, Object o, String name)
   at __main__.init() in C:\tmp\test\augmented_assignment.py:line 4
   at IronPythonConsole.IronPython.DoFile(String[] args)
   at IronPythonConsole.IronPython.Main(String[] args) 