old_contents: import multiprocessing as mp
  from subprocess import call
  
  
  # Process images using multiprocessing
  ###########################################
  def _process_images_multiproc(job):
      call(job)
  
  
  # Multiprocessing pool builder
  ###########################################
  def multiprocess(jobs, cpus):
      try:
          p = mp.Pool(processes=cpus)
          p.map(_process_images_multiproc, jobs)
          p.close()
          p.join()
      except KeyboardInterrupt:
          p.terminate()
          p.join()
          raise ValueError("Execution terminated by user\n")
  
  ###########################################
  
new_contents: import multiprocessing as mp
  from subprocess import call
  
  
  # Process images using multiprocessing
  ###########################################
  def _process_images_multiproc(job):
      call(job)
  
  
  # Multiprocessing pool builder
  ###########################################
  def multiprocess(jobs, cpus):
      try:
          __spec__ = None
          p = mp.Pool(processes=cpus)
          p.map(_process_images_multiproc, jobs)
          p.close()
          p.join()
      except KeyboardInterrupt:
          p.terminate()
          p.join()
          raise ValueError("Execution terminated by user\n")
  
  ###########################################
  
subject: fix multiprocess maybe