Hello, I want to remove the usage of the "tar" command in Distutils in favor or the "tarfile" module. But, there's an option in Distutils.make_archive to create a tarball using the "compress" [1] program rather than gzip or bzip2. Using tar -Z, it will pipe it to the compress program if present. This program implements the LZW algorithm [2]. The LZW used to be patented but this patent seem to be expired in every country now [3]. On Distutils side I can work things out so the tar archive created can be piped to an arbitraty compression program when it is not compressed using bzip2 or gzip; But I was wondering if we should we add a LZW support in tarinfo, besides gzip and bzip2 ? Although this compression standard doesn't seem very used these days, Regards Tarek [1] http://en.wikipedia.org/wiki/Compress [2] http://en.wikipedia.org/wiki/LZW [3] http://www.unisys.com/about__unisys/lzw -- Tarek Ziadé | http://ziade.org