itertools.groupby (gauntlet thrown down)

[Steve Howell]

> Raymond Hettinger <python at rcn.com> writes:
> > The gauntlet has been thrown down.  Any creative
> thinkers
> > up to the challenge?  Give me cool recipes.
> 

Twin primes?  (Sorry, no code, but there's a good
Python example somewhere that returns an iterator that
keeps doing the sieve, feed it to groupby,...)




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