text: with open('uuids', 'r') as f:
      uuids = f.readlines()
  
  
  poppable_uuids = uuids[:]
  
  for i in range(len(uuids)):
      poppable_uuids = uuids[:]
      test = poppable_uuids.pop(i)
      if test in poppable_uuids:
          print('Error: id clash')
  