On Mar 10, 9:07 pm, Chris Rebert <c...@rebertia.com> wrote: > On Tue, Mar 10, 2009 at 3:00 AM, flebber <flebber.c...@gmail.com> wrote: > > On Mar 10, 8:54 pm, flebber <flebber.c...@gmail.com> wrote: > >> Hi > > >> I was hoping someone would be able to point me in the direction of > >> some good documentation regarding sequencing, grouping and filtering > >> and in which order they should be done. > > >> As a small example it is easy to create the range of numbers 1 to 20. > >> But if I wanted to group all possible combinations of sets of 4 > >> numbers within this range is there already an in uilt function for > >> this I am searching the module docs with "number sequencing" and > >> "number grouping" but cannot find info. > > >> Then if I wanted to refine this results further eg no consecutive > >> numbers to be contained in sets. Is it best to create all sets and > >> then filter the sets for things matching this criteria or to set this > >> condition in a creation. Creating sets and then filtering would soon > >> become unwieldy with a larger range I would imagine.. > > >> An ideas, pointers to docs or better search terms to help me explore > >> this further would be appreciated. > > >> Thanks Sayth > > > I have just found itertools is this acheivable using combinations() > > and groupby() in itertools? > > Yes; indeed, those were the functions your post brought to mind and > which led me to suggest itertools. > > Cheers, > Chris > > -- > I have a blog:http://blog.rebertia.com
the only issue i can see is that i am using python 2.54 currently as ifelt it more supported by other programs than 2.6 or 3.0. After searching it seems that itertools has had a upgrade in 2.61 -- http://mail.python.org/mailman/listinfo/python-list
