Question about permutations (itertools)

2010-05-31 Thread Vincent Davis
As a note I am doing this in py3. I am looking for the most efficient (speed) way to produce an an iterator to of permutations. One of the problem I am having it that neither combinations nor permutations does not exactly what I want directly. For example If I want all possible ordered lists of

Re: Question about permutations (itertools)

2010-05-31 Thread Xavier Ho
list(combinations_with_replacement('01',3)) ('0', '0', '0') ('0', '0', '1') ('0', '1', '1') ('1', '1', '1') Is it possible to get combinations_with_replacement to return numbers rather than strings? (see above) list(combinations_with_replacement(range(0,2), 3)) [(0, 0, 0), (0, 0, 1),

Re: Question about permutations (itertools)

2010-05-31 Thread Peter Otten
Vincent Davis wrote: As a note I am doing this in py3. I am looking for the most efficient (speed) way to produce an an iterator to of permutations. One of the problem I am having it that neither combinations nor permutations does not exactly what I want directly. For example If I want

Re: Question about permutations (itertools)

2010-05-31 Thread Vincent Davis
On Mon, May 31, 2010 at 8:17 AM, Xavier Ho cont...@xavierho.com wrote: list(combinations_with_replacement('01',3)) ('0', '0', '0') ('0', '0', '1') ('0', '1', '1') ('1', '1', '1') Is it possible to get combinations_with_replacement to return numbers rather than strings? (see above)

Re: Question about permutations (itertools)

2010-05-31 Thread Mark Dickinson
On May 31, 3:04 pm, Vincent Davis vinc...@vincentdavis.net wrote: For example If I want all possible ordered lists of 0,1 of length 3 (0,0,0) (0,0,1) (0,1,1) (1,1,1) (1,0,1) (1,1,0) (1,0,0) I don't see a way to get this directly from the itertools. But maybe I am missing something. In

Re: Question about permutations (itertools)

2010-05-31 Thread Ulrich Eckhardt
Vincent Davis wrote: I am looking for the most efficient (speed) way to produce an an iterator to of permutations. One of the problem I am having it that neither combinations nor permutations does not exactly what I want directly. For example If I want all possible ordered lists of 0,1 of