Bug 2193084

python-box fails to build with Python 3.12.0a7.

=================================== FAILURES ===================================
____________________________ TestBox.test_box_slice ____________________________

self = Box({'qwe': 123, 'asd': 234, 'q': 1}), item = slice(None, -1, None)
_ignore_default = False

    def __getitem__(self, item, _ignore_default=False):
        try:
>           return super().__getitem__(item)
E           KeyError: slice(None, -1, None)

box/box.py:504: KeyError

The above exception was the direct cause of the following exception:

self = <test.test_box.TestBox object at 0x7f1654c31070>

    def test_box_slice(self):
        data = Box(qwe=123, asd=234, q=1)
>       assert data[:-1] == Box(qwe=123, asd=234)

test/test_box.py:1312: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = Box({'qwe': 123, 'asd': 234, 'q': 1}), item = slice(None, -1, None)
_ignore_default = False

    def __getitem__(self, item, _ignore_default=False):
        try:
            return super().__getitem__(item)
        except KeyError as err:
            if item == "_box_config":
                cause = _exception_cause(err)
                raise BoxKeyError("_box_config should only exist as an attribute and is never defaulted") from cause
            if self._box_config["box_dots"] and isinstance(item, str) and ("." in item or "[" in item):
                try:
                    first_item, children = _parse_box_dots(self, item)
                except BoxError:
                    if self._box_config["default_box"] and not _ignore_default:
                        return self.__get_default(item)
                    raise BoxKeyError(str(item)) from _exception_cause(err)
                if first_item in self.keys():
                    if hasattr(self[first_item], "__getitem__"):
                        return self[first_item][children]
            if self._box_config["camel_killer_box"] and isinstance(item, str):
                converted = _camel_killer(item)
                if converted in self.keys():
                    return super().__getitem__(converted)
            if self._box_config["default_box"] and not _ignore_default:
                return self.__get_default(item)
>           raise BoxKeyError(str(err)) from _exception_cause(err)
E           box.exceptions.BoxKeyError: 'slice(None, -1, None)'

box/box.py:525: BoxKeyError
=========================== short test summary info ============================
FAILED test/test_box.py::TestBox::test_box_slice - box.exceptions.BoxKeyError...
================= 1 failed, 135 passed, 4 deselected in 0.60s ==================


https://docs.python.org/3.12/whatsnew/3.12.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.12/fedora-rawhide-x86_64/05839096-python-box/

For all our attempts to build python-box with Python 3.12, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.12/package/python-box/

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 3.12:
https://copr.fedorainfracloud.org/coprs/g/python/python3.12/

Let us know here if you have any questions.

Python 3.12 is planned to be included in Fedora 39. To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.12.
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.