Drochom wrote: >> import cPickle >> >> plik = open("mealy","r") >> mealy = cPickle.load(plik) >> plik.close() > > this takes about 30 seconds! > How can I accelerate it? Perhaps it's worth looking into PyTables: <http://pytables.sourceforge.net/doc/PyCon.html#section4> Cheers, // Klaus -- ><> unselfish actions pay back better