Here's a 22-line beauty for a classic and amazing algorithm: http://bit.ly/bloom_filter
The wiki article on the algorithm is brief and well-written: http://en.wikipedia.org/wiki/Bloom_filter It turns out that people in the 1970's were pretty smart :-) Raymond ------- follow my other python tips and recipes on twitter: @raymondh -- http://mail.python.org/mailman/listinfo/python-list
