Bernhard Herzog wrote: > Michael Spencer <[EMAIL PROTECTED]> writes: > > > So, here's factorial in one line: > > # state refers to list of state history - it is initialized to [1] > > # on any iteration, the previous state is in state[-1] > > # the expression also uses the trick of list.append() => None > > # to both update the state, and return the last state > > > > >>> [state.append(state[-1] * symbol) or state[-1] > > ... for symbol, state in it.izip(range(1,10),it.repeat([1])) > > ... ] > > [1, 2, 6, 24, 120, 720, 5040, 40320, 362880] > > >>> > > There's no need for repeat: > > >>> [state.append(state[-1] * symbol) or state[-1] > for state in [[1]] > for symbol in range(1, 10)] > [1, 2, 6, 24, 120, 720, 5040, 40320, 362880]
Nope, that's just too convenient. Now I'm going to end up doing this all the time. -- CARL BANKS -- http://mail.python.org/mailman/listinfo/python-list
