algorithm that compresses data using a combination of a modern
variant of the LZ77 algorithm, Huffman coding and 2nd order context
modeling, with a compression ratio comparable to the best currently
available general-purpose compression methods. It is similar in
speed with deflate but offers more dense compression.
Original version by thfr. Moved to current python port standards by
me. Typo fix pointed out by sthen.
ok sthen
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