On 9/16/07, cesco <[EMAIL PROTECTED]> wrote: > Hi, > > is there a one-liner to accomplish the following task? > >From the list > l = ['string1', 'string2', 'string3'] > generate the list of lists > l = [['string1'], ['string1', 'string2'], ['string1', 'string2', > 'string3']] > > Any help would be appreciated. > > Thanks > Francesco >>> l = [1,2,3,4,5]
>>> [l[:i] for i in range(len(l))] [[], [1], [1, 2], [1, 2, 3], [1, 2, 3, 4]] >>> well almost works except for the first empty list. [Are you sure you dont want it?] Corrected >>> [l[:i+1] for i in range(len(l)-1)] [[1], [1, 2], [1, 2, 3], [1, 2, 3, 4]] Though I wonder if there is as neat a way as the first? -- http://mail.python.org/mailman/listinfo/python-list
