Drawing numpy arrays with pygame

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While building GPU accelerated cellular automata, I needed a quick way to dump a numpy array of pixels onto the screen. This is pretty simple to do with pygame’s surfarray API. You run this in the main drawing loop: 
 # Z is a numpy array 
 surf = pygame . surfarray . make_surface ( Z ) 
 self . display . blit ( surf , ( 0 , 0 )) 
 
 pygame . display . update () 
…

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