Bug 2458660

Summary: python-asn1tools fails to build with Python 3.15: test_command_line_convert_bad_data: AssertionError: "error: '012': Odd number of hexadecimal digits" != "error: '012': Odd-length string"
Product: [Fedora] Fedora Reporter: Karolina Surma <ksurma>
Component: python-asn1toolsAssignee: Peter Lemenkov <lemenkov>
Status: CLOSED RAWHIDE QA Contact:
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Version: rawhideCC: ksurma, lemenkov, mhroncok
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Fixed In Version: python-asn1tools-0.167.0-13.fc45 Doc Type: ---
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Last Closed: 2026-04-15 13:58:32 UTC Type: Bug
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Bug Blocks: 2412434    

Description Karolina Surma 2026-04-15 11:51:45 UTC
python-asn1tools fails to build with Python 3.15.0a8.

_________ Asn1ToolsCommandLineTest.test_command_line_convert_bad_data __________

self = <tests.test_command_line.Asn1ToolsCommandLineTest testMethod=test_command_line_convert_bad_data>

    def test_command_line_convert_bad_data(self):
        argv = [
            'asn1tools',
            'convert',
            'tests/files/foo.asn',
            'Question',
            '012'
        ]
    
        stdout = StringIO()
    
        with patch('sys.stdout', stdout):
            with patch('sys.argv', argv):
                with self.assertRaises(SystemExit) as cm:
                    asn1tools._main()
    
>               self.assertEqual(str(cm.exception),
                                 "error: '012': Odd-length string")
E               AssertionError: "error: '012': Odd number of hexadecimal digits" != "error: '012': Odd-length string"
E               - error: '012': Odd number of hexadecimal digits
E               + error: '012': Odd-length string

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_64/10318610-python-asn1tools/

For all our attempts to build python-asn1tools with Python 3.15, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.15/package/python-asn1tools/

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.