Copying a response from the Debian mailing list linked above that includes an email from James Roskind, the original author. The basic problem is that the profiler module restricts copying & altering the code to work done in python or for a python module - as such, it is too restrictive to fit into Debian's (and thus Ubuntu's) standard repos. Unfortunately, the company who owned the copyright has since been bought by Disney & then dissolved, so it isn't likely that anybody with the authority to update the license will be found. Really, the best bet - other than just notifying users that they'll need to find this package elsewhere (such as the multiverse repo) - would be to rewrite the library from scratch. It doesn't seem like that complicated of a task, but at the end of the day, whether it is worth it or not is a different question. Anyhow, cutting & pasting the post from the Debian list, including Roskind's response: --- (from http://bugs.debian.org/cgi-bin/bugreport.cgi?msg=130;bug=293932) --- From: David Ascher