Building wheel for backports.zoneinfo (pyproject.toml) did not run successfully python 3.12

[duy-jack-1995]

backport zoneinfo does not have wheels for python3.10.3.11/3.12.

ERROR: Failed building wheel for backports.zoneinfo

1269.3 running build_ext
1269.3 building 'backports.zoneinfo._czoneinfo' extension
1269.3 creating build/temp.linux-x86_64-cpython-312
1269.3 creating build/temp.linux-x86_64-cpython-312/lib
1269.3 gcc -fno-strict-overflow -Wsign-compare -DNDEBUG -g -O3 -Wall -fPIC -I/cache/.pyenv/versions/3.12.3/include/python3.12 -c lib/zoneinfo_module.c -o build/temp.linux-x86_64-cpython-312/lib/zoneinfo_module.o -std=c99
1269.3 lib/zoneinfo_module.c: In function ‘zoneinfo_fromutc’:
1269.3 lib/zoneinfo_module.c:600:19: error: ‘_PyLong_One’ undeclared (first use in this function); did you mean ‘_PyLong_New’?
1269.3 600 | one = _PyLong_One;
1269.3 | ^~~~~~~~~~~
1269.3 | _PyLong_New
1269.3 lib/zoneinfo_module.c:600:19: note: each undeclared identifier is reported only once for each function it appears in
1269.3 error: command '/usr/bin/gcc' failed with exit code 1

So please add wheel for supports python>3.9
Thanks.

[Murithijoshua]

Facing similar issue as well

[edgarrmondragon]

I'm curious why you'd need to build wheels for Python 3.12 when this package is clearly a backport of zoneinfo¹, added to the stdlib in Python 3.9.

If you need to support multiple Python versions for your code, the usual way to do it is to add a marker² to the dependency specification:

# requirements.txt
backports.zoneinfo;python_version<"3.9"

and then a conditional import

import sys

if sys.version_info < (3, 9):
    from backports import zoneinfo
else:
    import zoneinfo

This is also explained in the README of this project, with a slightly different approach. Thus, there's no clear benefit to publishing wheels for newer Python versions. And what's more, Python 3.8 will reach EOL soon³ so this package will become totally unnecessary if you only need to support actively maintained versions of Python.

Footnotes

1. https://docs.python.org/3.12/library/zoneinfo.html ↩

2. https://packaging.python.org/en/latest/specifications/dependency-specifiers/#environment-markers ↩

3. https://devguide.python.org/versions/ ↩