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Using cibuildwheel to manage the scikit-HEP packages

Episode #338, published Sun, Oct 17, 2021, recorded Thu, Oct 14, 2021

How do you build and maintain a complex suite of Python packages? Of course, you want to put them on PyPI. The best format there is as a wheel. This means that when developers use your code, it comes straight down and requires no local tooling to install and use.

But if you have compiled dependencies, such as C or FORTRAN, then you have a big challenge. How do you automatically compile and test against Linux, macOS (Intel and Apple Silicon), Windows, and so on? That's the problem cibuildwheel is solving.

On this episode, you'll meet Henry Schreiner. He is developing tools for the next era of the Large Hadron Collider (LHC) and is an admin of Scikit-HEP. Of course, cibuildwheel is central to this process.

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Links from the show

Henry on Twitter: @HenrySchreiner3
Henry's website:

Large Hadron Collider (LHC):
plumbum package:
awkward arrays:
scikit-hep developer:
Python Wheels site:
Build package:
Mac Mini Colo:
Code Combat:
clang format wheel:
cibuildwheel examples:
Cling in LLVM:

New htmx course:
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Episode transcripts:

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Henry Schreiner
Henry Schreiner
Henry Schreiner is a Computational Physicist / Research Software Engineer in High Energy Physics at Princeton University. He received his Ph.D. in experimental high-energy physics from the University of Texas at Austin. Henry is currently funded by the IRIS-HEP project, developing tools for the next era of the Large Hadron Collider (LHC). He is an admin of Scikit-HEP, and also the lead web developer for IRIS-HEP and Scikit-HEP, including primary authorship on the Scikit-HEP developer pages and accompanying cookiecutter template. Henry is also a maintainer/core developer for pypa/build, scikit-build, cibuildwheel, pybind11, and plumbum for Python, and primary author of CLI11 for C++. He is also the author of a variety of CMake, GPU, and Python training courses and classes.
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