At 11:45 AM 12/31/2005 +0800, Jeff Pitman wrote:

There is a standard regular expression that can be used to split out N-V which is a pretty common thing in deb/rpm. (ie. python-foo). I use the following in some py scripts to manage these pairings for my rpm repo: '(?i)(.*)-([^-]*)-(([^-]*)\.([^-]*)\.%s)(.*)' Which is N-V-R.dist.repo.ext The form that you might want would be: '(.*)-([^-]*)' Name-Version This would allow Name to have -. Obviously, - cannot be used in Version. Also, two side notes, 1) it's kind of annoying that package names interchange between `-' and `_', one in the file name of the archive and one used in the extracted directory name. 2) I've also see the use of `_' in versioning, such as json.py. I also highly discourage that practice. -- -jeff

The format used by setuptools condenses non-alphanumeric runs to a single '-' in the project's actual name and version; these are then transposed to a '_' in filenames, with '-' to separate name parts. The canonical form is '-', but the .egg-info directory format previously didn't transpose it to '_'. This caused a problem when support for versioned .egg-info was added to support system packages. I didn't realize that the setup-directory .egg-info wasn't being translated. Anyway, this is fixed now in the SVN version; all of the other places in setuptools that worked with '-'/'_' filenames were using the same (correct) code to do the processing. The relevant .egg-info code, however, was different, because it needed to *not* include the version number, so it couldn't use the standard dist.egg_name() method to generate a properly escaped filename including the version, Python version, etc.