m a t p l o t l i b = = 3 . 1 0 . 1 
 
 n u m p y = = 2 . 2 . 3 
 
 t o r c h = = 2 . 6 . 0 
 
 t o r c h v i s i o n = = 0 . 2 1 . 0 