[Numpy-discussion] NPZ format

Francesc Alted faltet@pytables....
Wed Sep 29 03:17:46 CDT 2010


I'm going to give a seminar about serialization, and I'd like to 
describe the .npy format.  I noticed that there is a variant of it 
called .npz that can pack several arrays in one single file.

However, .npz does not use compression at all and I'm wondering what's 
the reason.  I suppose that this is because you don't want to loose the 
possibility to memmap saved arrays, but can someone confirm this?


Francesc Alted

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