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Include "t" in ABI tag for --disable-gil builds #109740
Description
Feature or enhancement
Context:
The --disable-gil builds will have a different version specific ABI from the default CPython 3.13 builds due to reference counting differences and other changes. This should be indicated by a "t" (for "threading") in the ABI tag.
On POSIX, this is achieved by setting the ABIFLAGS variable, which feeds into the sysconfig EXT_SUFFIX and SOABI variables. The version specific shared libraries would look like:
package.cpython-313t-darwin.so
On Windows, this is achieved by setting PYD_TAGGED_SUFFIX, which feeds into the sysconfig EXT_SUFFIX. The shared libraries using the version specific ABI would look like:
_package.cp313t-win_amd64.pyd
Note that this does not address and is independent of the stable ABI. There's ongoing discussion about how best to support the stable ABI in --disable-gil builds.
cc @gpshead @brettcannon @vstinner
Activity
vstinner commentedon Sep 22, 2023
Yep, I'm fine with "t" tag. Try to write a test to ensure that if Python is built with NoGIL, the tag is present. Maybe added it in test_sys which can check sys.abiflags.
pythongh-109740: Use 't' in `--disable-gil` SOABI
pythongh-109740: Use 't' in `--disable-gil` SOABI
gh-109740: Use 't' in `--disable-gil` SOABI (#109922)
pythongh-109740: Use 't' in `--disable-gil` SOABI (python#109922)
colesbury commentedon Oct 6, 2023
This is implemented, although there are still some follow-up tasks.
pythongh-109740: Use 't' in `--disable-gil` SOABI (python#109922)