def main():

  my_replacement = "python_pkg_patterns"
  args = CmdLineOptions().execute()
  namespace = {}
  exec(open(args.confFn).read(), namespace)
  replaceA   = namespace.get(my_replacement, [])

  namespace = {}
  exec(open(args.xaltCFG).read(), namespace)
  replaceA.extend(namespace.get(my_replacement, []))

  convert_template("@"+my_replacement+"@", replaceA, args.input, args.output)