python-dev-list at cstork.org
Sun Apr 18 23:12:47 EDT 2004
On Sun, Apr 18, 2004 at 10:37:28PM -0400, Raymond Hettinger wrote:
> [Christian Stork]
> > I wanted to do something like
> > i = itertools.chain(list1, list2).index(elem)
> I'm curious about what application needed to do this.
It's for a simulation of a peer-to-peer algorithm I'm working on. The
lists are lists of peers and could potentially become _very_ large.
Therefore concatenation might not be cheap.
> > If I use the operator module it works just fine.
> > i = operator.indexOf(itertools.chain(list1, list2), elem)
> Nice solution. It is general purpose, self-documenting, and efficient.
Chris Stork <> Support eff.org! <> http://www.ics.uci.edu/~cstork/
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