duplicity fails to build with Python 3.13.03.

+ /usr/bin/python3 -Bs /usr/lib/rpm/redhat/pyproject_buildrequires.py --generate-extras --python3_pkgversion 3 --wheeldir /builddir/build/BUILD/duplicity-2.1.5/pyproject-wheeldir --output /builddir/build/BUILD/duplicity-2.1.5-3.fc40.x86_64-pyproject-buildrequires
Handling setuptools >= 40.8 from default build backend
Requirement satisfied: setuptools >= 40.8
   (installed: setuptools 68.2.2)
Handling wheel from default build backend
Requirement satisfied: wheel
   (installed: wheel 0.41.2)
<string>:160: SyntaxWarning: invalid escape sequence '\$'
<string>:161: SyntaxWarning: invalid escape sequence '\$'
Sorry, duplicity requires version 3.8 to 3.12 of Python.
You are running on version 3.13.

https://docs.python.org/3.13/whatsnew/3.13.html

For the build logs, see:
https://copr-be.cloud.fedoraproject.org/results/@python/python3.13/fedora-rawhide-x86_64/06924244-duplicity/

For all our attempts to build duplicity with Python 3.13, see:
https://copr.fedorainfracloud.org/coprs/g/python/python3.13/package/duplicity/

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 3.13:
https://copr.fedorainfracloud.org/coprs/g/python/python3.13/

Let us know here if you have any questions.

Python 3.13 is planned to be included in Fedora 41.
To make that update smoother, we're building Fedora packages with all pre-releases of Python 3.13.
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.