This build failure is a problem with the sphinxcontrib-asyncio plugin for Sphinx. I've updated the plugin to work with Sphinx 7.1 and sent a pull request to upstream:
https://github.com/aio-libs/sphinxcontrib-asyncio/pull/16 The sphinxcontrib-asyncio package is maintained by the Debian Python team. I'll add my patch to make it work with Sphinx 7.1 and upload a new version. -- Edward
