title: Parallelize python for-loop
body: <p>I would like to parallelize the following python loop using a Mac Pro with 2 Quad-Core processors. </p>
  
  <pre><code>result_list = []
  for a in a_range:
      for b in b_range:
          for c in c_range:
              result = call_fortran_program(a, b, c)
              result_list.append(result)
  </code></pre>
  
  <p>In my searches I've run across terms like Cython and GIL but it's still not clear to me on how to proceed. </p>