On 03/10/2010 02:20 PM, Giovanni Marco Dall'Olio wrote:
> - itertools.product dovrebbe darti il prodotto cartesiano, ma mi
> sembra che non vi sia almeno in python2.5, e per il momento non te lo
> posso provare (sono su una vecchia ubuntu).
>
Lo uso tranquillamente sulla 2.5, sono poche righe:
> # itertools.product from python 2.6
> def product(*args, **kwds):
> pools = map(tuple, args) * kwds.get('repeat', 1)
> if pools:
> result = [[]]
> for pool in pools:
> result = [x+[y] for x in result for y in pool]
> for prod in result:
> yield tuple(prod)
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