awscli2 fails to build with Python 3.14.0b1.

____________________________ test_lru_cache_weakref ____________________________
[gw0] linux -- Python 3.14.0 /usr/bin/python3

    def test_lru_cache_weakref():
        class ClassWithCachedMethod:
            @lru_cache_weakref(maxsize=10)
            def cached_fn(self, a, b):
                return a + b
    
        cls1 = ClassWithCachedMethod()
        cls2 = ClassWithCachedMethod()
    
        assert cls1.cached_fn.cache_info().currsize == 0
>       assert getrefcount(cls1) == 2
E       assert 1 == 2
E        +  where 1 = getrefcount(<tests.unit.botocore.test_utils.test_lru_cache_weakref.<locals>.ClassWithCachedMethod object at 0x7f7d7cee1940>)

tests/unit/botocore/test_utils.py:3649: AssertionError
________________ TestEMRutils.test_which_with_existing_command _________________
[gw0] linux -- Python 3.14.0 /usr/bin/python3

self = <tests.unit.customizations.emr.test_emr_utils.TestEMRutils object at 0x7f7e0d177110>

    def test_which_with_existing_command(self):
>       pythonPath = which('python') or which('python.exe')

tests/unit/customizations/emr/test_emr_utils.py:19: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

program = 'python'

    def which(program):
>       for path in os.environ["PATH"].split(os.pathsep):
E       KeyError: 'PATH'

../BUILDROOT/usr/lib/python3.14/site-packages/awscli/customizations/emr/emrutils.py:220: KeyError
______________ TestEMRutils.test_which_with_non_existing_command _______________
[gw0] linux -- Python 3.14.0 /usr/bin/python3

self = <tests.unit.customizations.emr.test_emr_utils.TestEMRutils object at 0x7f7e0d177250>

    def test_which_with_non_existing_command(self):
>       path = which('klajsflklj')

tests/unit/customizations/emr/test_emr_utils.py:23: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

program = 'klajsflklj'

    def which(program):
>       for path in os.environ["PATH"].split(os.pathsep):
E       KeyError: 'PATH'

../BUILDROOT/usr/lib/python3.14/site-packages/awscli/customizations/emr/emrutils.py:220: KeyError
___________________ TestWriteException.test_write_exception ____________________
[gw0] linux -- Python 3.14.0 /usr/bin/python3

self = <tests.functional.test_utils.TestWriteException testMethod=test_write_exception>

    def test_write_exception(self):
        error_message = "Some error message."
        ex = Exception(error_message)
>       with codecs.open(self.outfile, 'w+', encoding='utf-8') as outfile:

tests/functional/test_utils.py:21: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

filename = '/tmp/tmpmri5h0su/stdout', mode = 'w+', encoding = 'utf-8'
errors = 'strict', buffering = -1

>   ???
E   DeprecationWarning: codecs.open() is deprecated. Use open() instead.

https://docs.python.org/3.14/whatsnew/3.14.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.14-b1/fedora-rawhide-x86_64/09066399-awscli2/

For all our attempts to build awscli2 with Python 3.14, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14-b1/package/awscli2/

Testing and mass rebuild of packages is happening in copr.
You can follow these instructions to test locally in mock if your package builds with Python 3.14:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14-b1/

Let us know here if you have any questions.

Python 3.14 is planned to be included in Fedora 43.
To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.14.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires),
so if this package is required a lot, it's important for us to get it fixed soon.

We'd appreciate help from the people who know this package best,
but if you don't want to work on this now, let us know so we can try to work around it on our side.