[Python-Dev] Zipfile needs?

["Martin v. Löwis"]

Scott David Daniels wrote:
> I'm hoping to add BZIP2 compression to zipfile for 2.5.  My primary
> motivation is that Project Gutenberg seems to be starting to use BZIP2
> compression for some of its zips.  What other wish list things do
> people around here have for zipfile?  I thought I'd collect input here
> and make a PEP.

AFAIR, compression mechanisms are defined by numbers in the zip file.
So you should not bother with such a change unless there is some
"official" specification that explains how bzip2 is used in zipfiles.

IOW, looking at

http://www.pkware.com/company/standards/appnote/

you'll see that PKWARE has assigned algorithm 12 for bzip2. You might
want to take a look at the spec to see what else the Python
implementation lacks, and either document these features as deliberately
missing, TODO, or just implement them right away.

Regards,
Martin