Python I/O driver example

(!*********************************************************
   Mosel Python Example Problems
   =============================

   file io_example.mos
   ```````````````````
   Python I/O driver example for the initialization of
   data to and from Python.

   !!! This example requires an installation of Python 3, see
   !!! chapter 'python3' of the 'Mosel Language Reference' for
   !!! compatible versions and setup instructions.

  (c) 2018 Fair Isaac Corporation
      author: J.Müller
*********************************************************!)
model "Python I/O example"
  options noimplicit

  uses "python3"

  declarations
    I = 1..4
    A: dynamic array(I) of integer
  end-declarations

  A(1) := 1*2; A(3) := 3*2

  initializations to "python:"
    I as 'MyRange'
    A
  end-initializations

  pyrun("io_example.py")
  delcell(A) ! Delete existing elements from array A.

  initializations from "python:"
    A
  end-initializations

  writeln("Values initialized from Python:")
  writeln("  A   = ", A)
end-model