text: # pylint: disable=missing-function-docstring, missing-module-docstring/
  # coding: utf-8
  from mpi4py import MPI
  
  # we need to declare these variables somehow,
  # since we are calling mpi subroutines
  size = -1
  rank = -1
  comm = MPI.COMM_WORLD
  rank = comm.Get_rank()
  size = comm.Get_size()
  
  n = 10
  x = [0.]*n
  
  if rank == 0:
      x[:] = 1.0
  
  source = 0
  
  if rank == source:
      x[1] = 2.0
      comm.send(x[1], 1, tag=1234)
      print("> processor ", rank, " sent x(1) = ", x)
  # ...
  
  