Relative indexes are stored as absolute in the lockfile

Question

Hi,

I have a project which (transitively) depends on PySide6. Since the aarch64 build of PySide6 depends on manylinux_2_39 which is not satisfied for our use case, we decided to build our own wheels for the use case. I want to use uv lock to generate a lock file suitable for all the platforms (i.e. windows/amd64, linux/x86_64, linux/aarch64). Therefore I use

environments = [
    "sys_platform == 'win32' and implementation_name == 'cpython' and platform_machine == 'AMD64'",
    "sys_platform == 'linux' and implementation_name == 'cpython' and (platform_machine == 'x86_64' or platform_machine == 'aarch64')"
]

and I also played around with required-environments instead. Unfortunately, there seems to be no way to specify the python-platform (e.g. aarch64-manylinux_2_35) in these definitions, or at least I didn't find one.

The problem I'm facing is that I can't convince uv to use our self-build wheel for the linux aarch64 platform and the pypi wheels for all other platforms. I have tried to play around with

• index-strategy = "unsafe-best-match" (but it seems to either use pypi or the local wheel)
• required-environments
• platform-specific indices with marker = "platform_machine == 'aarch64'":

[tool.uv.sources]
pyside6 = [
    {index = "nexus", marker = "platform_machine == 'AMD64'"},
    {index = "flat-pyside6", marker = "platform_machine == 'aarch64'"},
]

[[tool.uv.index]]
name="flat-pyside6"
url="./path/to/pyside6-aarch64"

Are there any workarounds or suggestions for this use case?

Thanks!

Platform

windows/amd64, linux/x86_64, linux/aarch64

Version

uv 0.8.4