old_contents: import multiprocessing
  
  def number_of_workers():
      return (multiprocessing.cpu_count() * 2) + 1
  
  
  def handler_app(environ, start_response):
      resp = []
      status = '200 OK'
      resp = environ['QUERY_STRING'].split("&")
      for arg in resp:
          response_body  = [arg+"\r\n"]
  
      response_headers = [
          ('Content-Type', 'text/plain'),
      ]
  
      start_response(status, response_headers)
      return [response_body]
  
  if __name__ == '__main__':
      handler_app.run()
  
new_contents: #!/usr/bin/python3
  
  def handler_app(environ, start_response):
      resp = []
      status = '200 OK'
      resp = environ['QUERY_STRING'].split("&")
      for arg in resp:
          response_body  = [arg+"\r\n"]
  
      response_headers = [
          ('Content-Type', 'text/plain'),
      ]
  
      start_response(status, response_headers)
      return [response_body]
  
  if __name__ == '__main__':
      handler_app.run()
  
subject: Update hello.py