On Tue, Aug 25, 2015 at 1:54 PM, Nate Coraor <n...@bx.psu.edu> wrote:
> I've started down this road of Linux platform detection, here's the work > so far: > > https://bitbucket.org/natefoo/wheel/src/tip/wheel/platform/linux.py > > I'm collecting distribution details here: > > https://gist.github.com/natefoo/814c5bf936922dad97ff > > One thing to note, although it's not used, I'm attempting to label a > particular ABI as stable or unstable, so for example, Debian testing is > unstable, whereas full releases are stable. Arch and Gentoo are always > unstable, Ubuntu is always stable, etc. Hopefully this would be useful in > making a decision about what wheels to allow into PyPI. > > --nate > > Hi all, Platform detection and binary-compatibility.cfg support is now available in my branch of pip[1]. I've also built a large number of psycopg2 wheels for testing[2]. Here's what happens when you try to install one of them on CentOS 7 using my pip: # pip install --index https://wheels.galaxyproject.org/ --no-cache-dir psycopg2 Collecting psycopg2 Could not find a version that satisfies the requirement psycopg2 (from versions: ) No matching distribution found for psycopg2 Then create /etc/python/binary-compatibility.cfg: # cat /etc/python/binary-compatibility.cfg { "linux_x86_64_centos_7": { "install": ["linux_x86_64_rhel_6"] } } # pip install --index https://wheels.galaxyproject.org/ --no-cache-dir psycopg2 Collecting psycopg2 Downloading https://wheels.galaxyproject.org/packages/psycopg2-2.6.1-cp27-cp27mu-linux_x86_64_rhel_6.whl (307kB) 100% |################################| 307kB 75.7MB/s Installing collected packages: psycopg2 Successfully installed psycopg2-2.6.1 Of course, I have not attempted to solve the external dependency problem: # python -c 'import psycopg2; print psycopg2' Traceback (most recent call last): File "<string>", line 1, in <module> File "/usr/lib/python2.7/site-packages/psycopg2/__init__.py", line 50, in <module> from psycopg2._psycopg import BINARY, NUMBER, STRING, DATETIME, ROWID ImportError: libpq.so.5: cannot open shared object file: No such file or directory But after installing postgresql-libs, everything works as expected: # python -c 'import psycopg2; print psycopg2' <module 'psycopg2' from '/usr/lib/python2.7/site-packages/psycopg2/__init__.pyc'> This is an improvement over the current situation of an sdist in PyPI, however, since only one non-default package (postgresql-libs) needs to be installed as opposed to postgresql-devel and the build tools (gcc, make, etc.). In addition, a user installing psycopg2 is likely to already have postgresql-libs installed. I'd really appreciate if this work could be given a look, and some discussion could take place on where to go from here. Thanks, --nate [1]: https://github.com/natefoo/pip/tree/linux-wheels [2]: https://wheels.galaxyproject.org/simple/psycopg2
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