old_contents: """
  User interface for the Crawler class
  
  Author: Mark Boon
  Date: 28/08/2017
  Version: 2.0.0
  """
  
  from crawler import *
  
  
  def crawl(*urls):
      // load crawler threads
      for link in urls:
          current_worker = Worker(link)
          load = threading.Thread(target=current_worker.work)
          load.start()
  
new_contents: """
  User interface for the Crawler class
  
  Author: Mark Boon
  Date: 28/08/2017
  Version: 2.0.0
  """
  
  from crawler import *
  
  
  def crawl(*urls):
      # load crawler threads
      for link in urls:
          current_worker = Worker(link)
          load = threading.Thread(target=current_worker.work)
          load.start()
  
subject: Update controller.py