On 28 December 2013 06:27, Thomas Goirand <z...@debian.org> wrote: > On 12/28/2013 01:00 AM, Dimitri John Ledkov wrote: >> OK, I'm sorry. >> >> What does it mean a "clean backport" vs other type of backports? >> dh-python is in backports, so no changes are required to backport >> packages build-depending on dh-python. Is that not clean enough? > > I think you somehow misunderstood me. Let me try to expand in a longer > message then. > > python3 depends on dh-python. As much as I can see, that's the only > package with a direct dependency on dh-python. Therefore, for Jessie, it > is perfectly valid to omit dh-python in build-depends, as long as your > package build-depends on python3. > >2 However, if we want to backport a package to Wheezy, and that package is > using pybuild, then it needs an explicit build-depends on dh-python, > because in Wheezy, there's no dh-python, and python3 doesn't depend on > it. Therefore, to facilitate backports to Wheezy, I think it is nice to > just leave the dh-python as explicit dependency in new packages, at > least for until we have released Jessie. > > What I called "clean backports" was just a backport to Wheezy with > unmodified source package (just a rebuild without modification). I think > it is a good thing to make it possible for ourselves to do easy > backports this way. It is also a good thing to make it possible for our > users to backport packages to Wheezy themselves without too much hassle, > even if the package isn't officially in backports. > > So, yes, we don't explicitly need dh-python for Jessie if we have > python3 as build-depends, but IMO it is nice to do so. >
Well, my understanding is that an explicit build-dependency on dh-python is required if one uses pybuild. As per policy, one shouldn't rely on transitive dependencies, especially when it's well known that pybuild is only provided by the dh-python package and no other. If one merely uses dh_python2 one doesn't need any additional build-dependencies apart from default python interpreters. Since in wheezy/jessie, dh_python2 are provided by the packages generated from python-defaults. Would you agree that python/python-all dependencies are sufficient here? If there are packages that use pybuild, and do not build-depend on dh-python in jessie, imho that should be an important bug. I'll try to do an archive scan to detect how widespread the issue is. > On 12/27/2013 11:18 PM, Dimitri John Ledkov wrote: >> I don't understand why are you insisting on blocking migrations to >> dh-python. Is there some non-Debian requirement that you are omitting >> / not-telling here? > > I absolutely don't want to block any migration to dh-python. Quite the > opposite, I think it's great that we don't have to manually do stuff to > support python3, and I am very happy that this part has been automated > by pybuild. I do not know enough pybuild (which is very new, so I think > that's normal), but working on a few package maintained by Piotr, I like > what I saw about it. Packages supporting both Python 2.x and Python 3 > have a very short debian/rules, which is a very good thing. > > As for the "omitting / not-telling" part here, I'm not sure what you are > referring to. Maybe the fact that I do maintain unofficial backports of > a lot of python modules in order to have OpenStack to work in Wheezy? > Well, if that's what you are thinking about, my opinion is that it is a > good thing if someone cares about doing easy backports, and even do some > work in Sid to make them more easy. I would love to make this happen > through the official backports of Debian, however because of the amount > of packages, and the difficulty to have them all migrated to testing, I > don't think this is technically possible in good conditions. Like many > others, I am hoping for the Debian PPAMAIN repositories to be available > to start doing that. That's the only way, or we'd have to change the > backports policy, which I don't see happening anytime soon. Thoughts on > this would be very much welcome! > Well that part was mostly based on the request to support "python-support" in addition to "dh_python2" in a package I maintain. And thanks Piotr for clarify the transient python3 -> dh-python dependency. -- Regards, Dimitri. -- To UNSUBSCRIBE, email to debian-python-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/canbhlugbdf2uhdc_k_5_508gkhaq-+4kdirdcebzaz5n1cg...@mail.gmail.com
