On 26 November 2015 at 21:34, Adam Williamson <adamw...@fedoraproject.org> wrote:
> On Thu, 2015-11-26 at 14:06 -0500, Randy Barlow wrote: > > Hello! > > > > I recently added the package python-rpdb to F22/23/rawhide. The build > > failed in Koji due to having a BuildRequires on python3-devel. It seems > > that it is called python34-devel in EL 7. This leads me to wonder on a > > few things: > > EL 7 itself does not include Python 3. There is a build called > 'python34' in EPEL 7 indeed, and I believe there are also some builds > provided as SCLs, I don't know what naming scheme they follow. > > > 0) Should I call my package python34-rpdb in EL 7 for consistency? There > > don't seem to be very many Python 3 packages for EL 7 at all (yum search > > only found a handful) but it seemed that there are a few doing this. > > Alternatively, I could just build the python2 package. > > Personally I only do py2 builds for EL 7. If I were doing a python3 > build I think I'd still call it python3-foo, not python34-foo. > > > 1) What is the recommended strategy for handling my spec file if I > > attempt to do different things in EL 7 than I do in F22+? I had > > considered just making this change to the spec file in that branch, but > > since this would require raising the release it could make upgrade from > > EL 7 to EL 8 tricky if the package version doesn't change upstream. Is > > it better to use if statements in the spec file? I like the idea of very > > clean spec files that work on one specific release, but on the other > > hand I do see the potential for upgrading to be disrupted. > > You can choose to do it either way, there is no official requirement to > use either approach (or even officially preferred approach). I usually > use %if's and try to keep the spec the same across as many branches as > possible so I can just lazily merge stuff down from master, though > obviously if you go to a new release with major changes in Rawhide, you > can't just merge that back to stable releases. > > Indeed the snippet you found is intended to help with the issue you > mentioned. Note: > > 1.0-2.fc23 is lower than 1.0-3.fc22 > > but: > > 1.0-2.fc23 is higher than 1.0-2.fc22.1 > You will probably want to keep an eye on this FPC ticket: https://fedorahosted.org/fpc/ticket/567 There's currently an ongoing discussion on how best to handle python3 in EPEL given the 3.4->3.5 upcoming (and future) transitions and the impact this may have on maintenance.
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