'Open Sesame' goes my wallet ...
Officially, Python 3.9 and above are not supported on Windows 7 SP1 and Windows Server 2008 R2 SP1. Here, you can obtain unofficial Windows installers that bring back support for these older Windows ...
When I run uv run --python 3.13 python then Python 3.13.0rc2 is started. Why it is still using the release candidate? ~ $ uv python list --only-installed cpython-3.13 ...