yamllint fails to build with Python 3.14.0a3.

+ /usr/bin/python3 -m unittest discover
..................................................................................................................................................................ss.....................................................................................s....................................................................................................................................................................
----------------------------------------------------------------------
Ran 414 tests in 3.477s

object address  : 0x7f6b642ef1c0
object refcount : 3
object type     : 0x7f6b65d16de0
object type name: ValueError
object repr     : ValueError('I/O operation on closed file')
lost sys.stderr

https://docs.python.org/3.14/whatsnew/3.14.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.14/fedora-rawhide-x86_64/08480354-yamllint/

For all our attempts to build yamllint with Python 3.14, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14/package/yamllint/

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 3.14:
https://copr.fedorainfracloud.org/coprs/g/python/python3.14/

Let us know here if you have any questions.

Python 3.14 is planned to be included in Fedora 43.
To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.14.
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.