code: def run():
      
      __builtins__
      script_name = sys.argv[1]
      namespace = dict(
          __file__=script_name,
          __name__='__main__',
          __doc__=None,
      )
      sys.argv[:] = sys.argv[1:]
  
      open_ = getattr(tokenize, 'open', open)
      script = open_(script_name).read()
      norm_script = script.replace('\\r\\n', '\\n')
      code = compile(norm_script, script_name, 'exec')
      exec(code, namespace)
docs: Run the script in sys.argv[1] as if it had
      been invoked naturally.