subversion fails to build with Python 3.11.0a1.

Traceback (most recent call last):
  File "/builddir/build/BUILD/subversion-1.14.1/./gen-make.py", line 326, in <module>
    main(conf, gentype, skip_depends=skip, other_options=rest.list)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/builddir/build/BUILD/subversion-1.14.1/./gen-make.py", line 61, in main
    generator = gen_module.Generator(fname, verfname, other_options)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/builddir/build/BUILD/subversion-1.14.1/build/generator/gen_make.py", line 76, in __init__
    gen_base.GeneratorBase.__init__(self, fname, verfname, options)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/builddir/build/BUILD/subversion-1.14.1/build/generator/gen_base.py", line 79, in __init__
    parser.readfp(open(fname))
    ^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'ConfigParser' object has no attribute 'readfp'. Did you mean: 'read'?
make: autogen-standalone.mk: No such file or directory
make: *** No rule to make target 'autogen-standalone.mk'.  Stop.
Creating build-outputs.mk...
Traceback (most recent call last):
  File "/builddir/build/BUILD/subversion-1.14.1/./gen-make.py", line 326, in <module>
    main(conf, gentype, skip_depends=skip, other_options=rest.list)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/builddir/build/BUILD/subversion-1.14.1/./gen-make.py", line 61, in main
    generator = gen_module.Generator(fname, verfname, other_options)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/builddir/build/BUILD/subversion-1.14.1/build/generator/gen_make.py", line 76, in __init__
    gen_base.GeneratorBase.__init__(self, fname, verfname, options)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/builddir/build/BUILD/subversion-1.14.1/build/generator/gen_base.py", line 79, in __init__
    parser.readfp(open(fname))
    ^^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'ConfigParser' object has no attribute 'readfp'. Did you mean: 'read'?

Removed from the configparser module: the SafeConfigParser class, the filename property of the ParsingError class, the readfp() method of the ConfigParser class, deprecated since Python 3.2. (Contributed by Hugo van Kemenade in bpo-45173.)

https://docs.python.org/3.11/whatsnew/3.11.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.11/fedora-rawhide-x86_64/02910706-subversion/

For all our attempts to build subversion with Python 3.11, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.11/package/subversion/

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 3.11:
https://copr.fedorainfracloud.org/coprs/g/python/python3.11/

Let us know here if you have any questions.

Python 3.11 is already included in Fedora 35. To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.11.
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.