new_contents: from time import sleep
  from progressbar import ProgressBar
  
  def main():
      steps = 50
      progress_bar = ProgressBar(steps)
  
      ### Customizations, uncomment to see the results
  
      # progress_bar.prefix_text = '-----> Progress:'
      # progress_bar.suffix_text = 'completed'
      # progress_bar.progress_char = '#'
      # progress_bar.fill_char = '.'
  
      for i in range(1, steps + 1):
          sleep(0.2)
          progress_bar.show(i)
  
      # Custom completed message
      progress_bar.complete('Progress completed!')
  
      # Default completed message
      # progress_bar.complete()
  
  if __name__ == '__main__':
      main()
  
subject: Add example