[Python-ideas] Extremely weird itertools.permutations

[Raymond Hettinger]

On Oct 12, 2013, at 6:47 PM, Steven D'Aprano <steve at pearwood.info> wrote:

> the proposal is not to eliminate duplicates from 
> the population, but from the permutations themselves.

I'm curious about the use cases for this.
Other than red/blue marble examples and some puzzle problems,
does this come-up in any real problems?  Do we actually need this?


Raymond
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