new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  # Test raw data with MSSImage class.
  
  import sys
  from mss import MSSImage
  
  
  if len(sys.argv) < 4:
  	print('python {0} data.raw width height'.format(sys.argv[0]))
  else:
  	with open(sys.argv[1], 'rb') as f:
  		data = f.read()
  		width = sys.argv[2]
  		height = sys.argv[3]
  	try:
  		mss = MSSImage(data, width, height)
  		mss.dump(output=sys.argv[1])
  	except Exception as ex:
  		print(ex)
  		raise
  
subject: Add a little file to test raw data (pixels) into MSSImage class