[Python-Dev] Additional behaviour for itertools.combinations

[Nick Coghlan]

Raymond Hettinger wrote:
> Since I expect  students to be among the users for the comb/perm
> functions, there is some merit to keeping the API as simple as possible.
> Besides, it is not hard to use the existing tool as a primitive to get to
> the one you want:
> 
>   def mycombinations(iterable, r_seq):
>         # mycombinations('abc', [1,2]) --> A B C AB AC BC
>         iterable = list(iterable)
>         return chain.from_iterable(imap(combinations, repeat(iterable),
> r_seq))

Perhaps a reasonable starting point would be to include this as one of
the example itertools recipes in the documentation?

Cheers,
Nick.

-- 
Nick Coghlan   |   ncoghlan at gmail.com   |   Brisbane, Australia
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