jc fails to build with Python 3.15.0a3. FAIL: test_utils_timestamp (tests.test_jc_utils.MyTests.test_utils_timestamp) ---------------------------------------------------------------------- Traceback (most recent call last): File "/builddir/build/BUILD/jc-1.25.6-build/jc-1.25.6/tests/test_jc_utils.py", line 98, in test_utils_timestamp self.assertEqual(ts_dict, expected_output) ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^ AssertionError: {'str[19 chars]0:32:28 PDT', 'format': 1760, 'naive': 1631849548, 'utc': None} != {'str[19 chars]0:32:28 PDT', 'format': 7250, 'naive': 1631849548, 'utc': None} - {'format': 1760, ? - ^ + {'format': 7250, ? ^^ 'naive': 1631849548, 'string': '2021-09-16 20:32:28 PDT', 'utc': None} https://docs.python.org/3.15/whatsnew/3.15.html For the build logs, see: https://copr-be.cloud.fedoraproject.org/results/@python/python3.15/fedora-rawhide-x86_64/09935213-jc/ For all our attempts to build jc with Python 3.15, see: https://copr.fedorainfracloud.org/coprs/g/python/python3.15/package/jc/ 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 3.15: https://copr.fedorainfracloud.org/coprs/g/python/python3.15/ Let us know here if you have any questions. Python 3.15 is planned to be included in Fedora 45. To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.15. 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.
This seems to boil down to a change in datetime.strptime(), where if you use `%z` in the format string, Python 3.14 requires offset information to be present and will produce a `ValueError` if it's missing, whereas Python 3.15-alpha3 treats it as optional and will create a native datetime object, instead.