old_contents: import sys
  import zipfile
  
  def main(argv):
      input = argv[1]
      output = argv[2]
  
      with zipfile.ZipFile(input) as f:
          f.extractall(output)
      
      return 0
  
  if __name__ == '__main__':
      sys.exit(main(sys.argv))
  
new_contents: import sys
  import zipfile
  
  def main(argv):
      input_ = argv[1]
      output = argv[2]
  
      with zipfile.ZipFile(input_) as f:
          f.extractall(output)
  
      return 0
  
  if __name__ == '__main__':
      sys.exit(main(sys.argv))
  
subject: Apply pep8 formatting