scikit-build Community Meeting #20 July 19th, 2024

[thewtex]

Agenda

• Review Henry's Slides
• SciPy 2024 follow-up

Attending

• Matt McCormick
• Henry Scheiner
• Jean-Christophe Fillion-Robin
• Ralf Gommers

Discussion

• Python Freethreading
• Cython build

Slides review notes

• scikit-build-core updates

  • setup-fortran GitHub Action C/CXX specification compatibility
  • brew reinstall gfortran can be required
  • pixi instead?
    • conda-forge also uses a forked flang that works with msvc
    • mingw on windows otherwise
  • Related:
    • https://fortran-lang.discourse.group/t/the-difficulties-of-using-fortran-in-scipy/6753

• How to associate license with vendorized cython-cmake, f2py-cython, ... ?

  • See https://reuse.software/ and https://github.com/Kitware/vtk-book#license for an example

• Passing config options through to plugins, e.g. hatchling plugin

  • Not passed from the command line. See https://github.com/orgs/scikit-build/discussions/1106
  • Can be passed through pyproject.toml

• cross-compilation

  • PEP 739 updates
  • Describe a Python interpreter for cross-compilation
  • Todo: scan to see if it includes all the information needed
  • Can write a description in JSON by hand
  • Can set up a cross-target with conda easily

• Cross linking

  • Add more cross links from scientific-python (https://learn.scientific-python.org/development/) to pyOpenSCI (https://www.pyopensci.org/)

• cython

  • semantics: "transpile"
  • support usage that just gets the cython executable transpiler

Recording and Transcript

• NA