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Optionally support wheels

See original GitHub issue

It might be interesting for some subset of packages to be available as wheels. conda-build has support (guessing 3.x) for outputting wheels as noted in this doc. Doing this could help consolidate the wheel and conda-forge build projects a bit more, which would lend itself to a larger interested group working in the same ecosystem.

Issue Analytics

State:
Created 6 years ago
Comments:16 (12 by maintainers)

Top GitHub Comments

2reactions

jakirkhamcommented, Mar 5, 2018

For some use cases, was recently asked about pip installing a package that I help maintain. The package was available as an sdist from PyPI. However the user ran into some glibc issues caused by build location vs. installing location discrepancy. In another use case, a user requested wheels for another project that I help maintain.

In pursuit of these use cases, generated PR ( https://github.com/conda-forge/numcodecs-feedstock/pull/17 ) and PR ( https://github.com/conda-forge/pyfftw-feedstock/pull/16 ). Both of these build the packages in question on CI and package them in both conda and wheel form thanks to some new features in conda-build. Tested building both of them locally and was able to get them to pip install into a minimal Python 3.6 environment and get them to work.

These particular cases work well IMHO as they don’t really have any runtime dependencies that are other libraries. In the first case, everything is linked together into libraries that would be installed in site-packages regardless. In the second case, we already statically link a library to avoid some known issues encountered in the wild.

There’s probably still some things to iron out like whether this is something others are comfortable pursuing in conda-forge, what other tooling changes need to be made (e.g. the upload script), how do we decide what packages should also build wheels, how do we handle more complex wheels (i.e. required shared libraries at runtime), how do we handle discrepancies in compatibility (e.g. CentOS 5 vs 6, macOS 10.6 vs 10.9), and probably others that I have thought of yet.

Anyways seems like a good time to get some other thoughts and feedback.

0reactions

jakirkhamcommented, Apr 12, 2018

cc-ing @di, as we had talked about this briefly tonight. Would be interested in hearing your thoughts on this.

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