[PROTON-2678] Use Python Limited API and create universal wheel when building Qpid Proton Python client

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: proton-c-0.39.0
• Fix Version/s: proton-c-0.39.0
• Assignee: Andrew Stitcher
• Reporter: Jiri Daněk
• Created: 31/Jan/23 08:29
• Updated: 07/Jun/23 12:18
• Resolved: 01/Feb/23 11:27

Description

Currently, the build produces Python-version-specific wheels

creating 'dist/python_qpid_proton-0.39.0.dev0-cp311-cp311-linux_x86_64

Python is able to create universal wheels that can be installed on any (reasonably new) Python version. See

#. https://peps.python.org/pep-0425/#overview

The CPython stable ABI is abi3 as in the shared library suffix.

#. https://docs.python.org/3/c-api/stable.html#stable-application-binary-interface
#. https://docs.python.org/3/c-api/stable.html#c.Py_LIMITED_API

Define Py_LIMITED_API to the value of PY_VERSION_HEX corresponding to the lowest Python version your extension supports. The extension will work without recompilation with all Python 3 releases from the specified one onward, and can use Limited API introduced up to that version.