code: def testAttrNoPythonArray(self):
      cls, obj = type(self.obj), self.obj
      self.keyval = cls.Create_keyval(nopython=True)
      #
      ary = array.array("i", [42])
      addr, _ = ary.buffer_info()
      obj.Set_attr(self.keyval, addr)
      #
      attr = obj.Get_attr(self.keyval)
      self.assertEqual(attr, addr)
  
imports: from mpi4py import MPI
  import mpiunittest
label_desc: Use image node_id 8 for calling the BaseTestAttr obj's underlying member method code with example usage: obj.testAttrNoPythonArray() without return types