code: def generate_readme_rst():
      
  
      pandoc_cmd = [
          'pandoc',
          '--from=markdown',
          '--to=rst',
          '--output=README.rst',
          'README.md'
      ]
  
      if os.path.exists('README.rst'):
          return
      try:
          subprocess.call(pandoc_cmd)
      except (IOError, OSError) as e:
          print('Could not run "pandoc". Error: %s' % e, file=sys.stderr)
          print('Generating only a stub instead of the real documentation.')
docs: Generate README.rst from README.md via pandoc.
  
      In case of errors, we show a message having the error that we got and
      exit the program.