new_contents: import os
  from subprocess import Popen, PIPE
  
  
  def killpython():
      os.system("ps aux | grep zdt > crap")
      for line in open('crap').readlines():
          os.system('kill {}'.format(line.strip().split()[1]))
      os.system("rm crap")
  
  
  if __name__ == '__main__':
      killpython()
  
subject: Add utils file