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Bug 1926354

Summary: python-shadowsocks fails to build with Python 3.10: AttributeError: module 'collections' has no attribute 'MutableMapping'
Product: [Fedora] Fedora Reporter: Miro Hrončok <mhroncok>
Component: python-shadowsocksAssignee: Orphan Owner <extras-orphan>
Status: CLOSED WONTFIX QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rawhideCC: mhroncok, robinlee.sysu, thrnciar
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Last Closed: 2021-03-23 14:41:18 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Blocks: 1890881    

Description Miro Hrončok 2021-02-08 17:08:31 UTC
python-shadowsocks fails to build with Python 3.10.0a5.

Traceback (most recent call last):
  File "/builddir/build/BUILD/shadowsocks-2.9.1/setup.py", line 8, in <module>
    setup(
  File "/usr/lib/python3.10/site-packages/setuptools/__init__.py", line 153, in setup
    return distutils.core.setup(**attrs)
  File "/usr/lib64/python3.10/distutils/core.py", line 148, in setup
    dist.run_commands()
  File "/usr/lib64/python3.10/distutils/dist.py", line 966, in run_commands
    self.run_command(cmd)
  File "/usr/lib64/python3.10/distutils/dist.py", line 985, in run_command
    cmd_obj.run()
  File "/usr/lib/python3.10/site-packages/setuptools/command/test.py", line 232, in run
    self.run_tests()
  File "/usr/lib/python3.10/site-packages/setuptools/command/test.py", line 250, in run_tests
    test = unittest.main(
  File "/usr/lib64/python3.10/unittest/main.py", line 100, in __init__
    self.parseArgs(argv)
  File "/usr/lib64/python3.10/unittest/main.py", line 124, in parseArgs
    self._do_discovery(argv[2:])
  File "/usr/lib64/python3.10/unittest/main.py", line 244, in _do_discovery
    self.createTests(from_discovery=True, Loader=Loader)
  File "/usr/lib64/python3.10/unittest/main.py", line 154, in createTests
    self.test = loader.discover(self.start, self.pattern, self.top)
  File "/usr/lib64/python3.10/unittest/loader.py", line 349, in discover
    tests = list(self._find_tests(start_dir, pattern))
  File "/usr/lib64/python3.10/unittest/loader.py", line 405, in _find_tests
    tests, should_recurse = self._find_test_path(
  File "/usr/lib64/python3.10/unittest/loader.py", line 483, in _find_test_path
    tests = self.loadTestsFromModule(package, pattern=pattern)
  File "/usr/lib/python3.10/site-packages/setuptools/command/test.py", line 50, in loadTestsFromModule
    tests.append(self.loadTestsFromName(submodule))
  File "/usr/lib64/python3.10/unittest/loader.py", line 154, in loadTestsFromName
    module = __import__(module_name)
  File "/builddir/build/BUILD/shadowsocks-2.9.1/shadowsocks/udprelay.py", line 70, in <module>
    from shadowsocks import encrypt, eventloop, lru_cache, common, shell
  File "/builddir/build/BUILD/shadowsocks-2.9.1/shadowsocks/lru_cache.py", line 33, in <module>
    class LRUCache(collections.MutableMapping):
AttributeError: module 'collections' has no attribute 'MutableMapping'


The deprecated aliases to Collections Abstract Base Classes were removed from the collections module.
https://docs.python.org/3.10/whatsnew/changelog.html#python-3-10-0-alpha-5
https://bugs.python.org/issue37324

Also note that lru_cache is part of the standard library of Python and there is no reason to bundle it.


For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.10/fedora-rawhide-x86_64/01952462-python-shadowsocks/

For all our attempts to build python-shadowsocks with Python 3.10, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.10/package/python-shadowsocks/

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 3.10:
https://copr.fedorainfracloud.org/coprs/g/python/python3.10/

Let us know here if you have any questions.

Python 3.10 will be included in Fedora 35. To make that update smoother, we're building Fedora packages with early pre-releases of Python 3.10.
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.

Comment 1 Fedora Admin user for bugzilla script actions 2021-02-09 12:06:45 UTC
This package has changed maintainer in Fedora. Reassigning to the new maintainer of this component.

Comment 2 Ben Cotton 2021-02-09 16:07:49 UTC
This bug appears to have been reported against 'rawhide' during the Fedora 34 development cycle.
Changing version to 34.

Comment 3 Miro Hrončok 2021-03-23 14:41:18 UTC
Automation has figured out the package is retired in rawhide.

If you like it to be unretired, please open a ticket at https://pagure.io/releng/new_issue?template=package_unretirement