Commits on Oct 6, 2024

1. bindings: python: add a script to generate armv7l wheels …

   Add a 'generate_armv7l_wheels.sh' shell script that makes armv7l Python
   wheels for combinations of libc (glibc, musl) and selected CPython
   versions.
   
   Currently, Python wheels are generated for the x86_64 and aarch64 CPU
   architectures only, using the 'cibuildwheel' tool invoked by the existing
   'generate_pypi_artifacts.sh' script. The 'cibuildwheel' tool, in turn,
   relies on the PyPA manylinux and musllinux Docker images that, sadly, are
   not available for the armv7l architecture that is still common in edge
   devices.
   
   It was previously suggested that Raspberry Pi users could rely on the
   piwheels.org repository for armv7l gpiod wheels. Alas, that repository
   lags significantly behind the latest CPython releases. It currently
   provides gpiod wheels for CPython versions 3.9 and 3.11 only, while
   CPython 3.12 was released a year ago and CPython 3.13 is about to be
   released.
   
   It turns out that armv7l Python wheels can be relatively easily generated
   without 'cibuildwheel', in about 160 lines of structured shell script that
   introduces no new dependencies (the script depends on Docker and
   binfmt_misc only). Instead of manylinux and musllinux Docker images, the
   script uses the official Python image on Docker Hub, which is available
   for armv7l in Debian and Alpine flavours (for glibc and musl libc
   respectively).
   
   Signed-off-by: Paulo Ferreira de Castro <[email protected]>

   

   pdcastro committed Oct 6, 2024
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