"uv add PySide6" fails when the latest version doesn't have a wheel for the current platform

[borco]

At the time of writing this, the latest version of PySide6 is 6.8.1.1. I assume this is a patch release only for macos, as there is only one wheel for macos in it.

When I try to install PySide6 on Windows, I get an error that no source or wheel is available:

$ uv add pyside6
Resolved 5 packages in 6ms
error: Distribution `pyside6==6.8.1.1 @ registry+https://pypi.org/simple` can't be installed 
because it doesn't have a source distribution or wheel for the current platform

However, the older release 6.8.1 contains wheels for many other platforms. If I blacklist the 6.8.1.1 version, then installing on Windows works:

$ uv add "pyside6>=6.8.1,!=6.8.1.1"
Resolved 5 packages in 257ms
Installed 4 packages in 1.05s
 + pyside6==6.8.1
 + pyside6-addons==6.8.1
 + pyside6-essentials==6.8.1
 + shiboken6==6.8.1

Is it possible to automatically detect such a case and install from the older version without having to explicitly blacklist the latest version that only contains wheels for other platform(s)?

PySide 6.8.1.1 files

PySide 6.8.1 files

[charliermarsh]

This is tracked in #9711 (though this is really a package issue -- they should be uploading a consistent set of wheels, the system isn't designed to be used this way).