native python version comparison

[John Wright]

On Fri, Mar 12, 2010 at 08:45:13PM +0100, Filippo Giunchedi wrote:
> On Thu, Mar 11, 2010 at 01:29:53PM -0700, John Wright wrote:
> > I sent a patch to bug #562257 - any objections to applying and uploading
> > this weekend?
> 
> look good, thanks!
> just a quick thought: what about testing if the native version parser and
> apt_pkg against each other? IOW Version(foo) == AptPkgVersion(foo) and
> AptPkgVersion(foo) == Version(foo) must always hold

Good point.  I've got another patch ready that makes this work, and
makes the test cross-validate version comparison against all
combinations of str, NativeVersion, and AptPkgVersion.  It also
introduces a base class that validates the version against policy
section 5.6.12 and handles splitting into epoch, upstream_version, and
debian_version components and makes comparison across types a little
easier.

The meat of the NativeVersion class is the same, so I plan on pushing
this and uploading tonight or tomorrow.  I'll reply here with the actual
patch anyway.

-- 
John Wright <jsw at debian.org>