Maric Michaud wrote: > Le Mardi 20 Juin 2006 12:09, Diez B. Roggisch a écrit : >> [i for i, equals in enumerate((x == y for x, y in zip(a, b))) if equals] > > No needs to nest comprehensions, should be : > > [ i for i, v in enumerate(zip(a, b)) if v[0] == v[1] ] You're right, that design stemmed from my first broken version. Diez