I just found out that it is possible to "cheat" in this challenge by using built-in string functionality in python (decode() + some black magic), except that this is not really against the rules, is it? But it takes the fun out of the challenge, so I didn't submit a cheating solution... yet.
The "black magic" part involves knowing a checksum of the uncompressed data, so I don't think it would be possible to cheat in this way if the challenge included some randomly generated text, for instance.
Probably it won't work. Many of the codecs have been removed because some people regarded it as cheating to use them. You can try it though to see what happens if you like.
The "black magic" part involves knowing a checksum of the uncompressed data, so I don't think it would be possible to cheat in this way if the challenge included some randomly generated text, for instance.