On Fri, Jan 8, 2016 at 4:31 PM, Robert McGibbon <rmcgi...@gmail.com> wrote: >> Both Anaconda and Canopy build on a base default Linux system so that >> the built binaries will work on many Linux systems. > > I think the base linux system is CentOS 5, and from my experience, it seems > like this approach > has worked very well. Those packages are compatible with all essentially all > Linuxes that are > more recent than CentOS 5 (which is ancient). I have not heard of anyone > complaining that the > packages they install through conda don't work on their CentOS 4 or Ubuntu > 6.06 box.
Right. There's a small problem which is that the base linux system isn't just "CentOS 5", it's "CentOS 5 and here's the list of libraries that you're allowed to link to: ...", where that list is empirically chosen to include only stuff that really is installed on ~all linux machines and for which the ABI really has been stable in practice over multiple years and distros (so e.g. no OpenSSL). So the key next step is for someone to figure out and write down that list. Continuum and Enthought both have versions of it that we know are good... Does anyone know who maintains Anaconda's linux build environment? > I assume > Python / pip is probably used on a wider diversity of linux flavors than > conda is, so I'm sure that > binaries built on CentOS 5 won't work for absolutely _every_ linux user, but > it does seem to > cover the substantial majority of linux users. > > Building redistributable linux binaries that work across a large number of > distros and distro > versions is definitely tricky. If you run ``python setup.py bdist_wheel`` on > your Fedora Rawhide > box, you can't really expect the wheel to work for too many other linux > users. So given that, I > can see why PyPI would want to be careful about accepting Linux wheels. > > But it seems like, if they make the upload something like > > ``` > twine upload numpy-1.9.2-cp27-none-linux_x86_64.whl \ > --yes-yes-i-know-this-is-dangerous-but-i-know-what-i'm-doing > ``` > > that this would potentially be able to let packages like numpy serve their > linux > users better without risking too much junk being uploaded to PyPI. That will never fly. But like Matthew says, I think we can probably get them to accept a PEP saying "here's a new well-specified platform tag that means that this wheel works on all linux systems meet the following list of criteria: ...", and then allow that new platform tag onto PyPI. -n -- Nathaniel J. Smith -- http://vorpus.org _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org https://mail.scipy.org/mailman/listinfo/numpy-discussion