Is pdm able to add dependencies in default group but with OS information?

[monchin]

Hello, I'm writing a small project with pdm. Now I want this project to be able to work across platform.
In a function I need to set process affinity. When it is posix, I can directly use os.sched_setaffinity; but when it is nt, I must import win32api, win32process and win32con at first.

As on Linux, pypiwin32 can't be installed (pdm would say "pdm.exceptions.CandidateNotFound: No candidate is found for pywin32 that matches the environment or hashes"), I'd like to know what is the best practice to deal with situations like this? Must I use different group like pdm add -dG windows pypiwin32? If other projects depend on this project, how to let them install pypiwin32 when it is windows and not install pypiwin32 when it is linux?

[frostming]

pdm add 'pypiwin32; sys_platform=="win32"'

https://peps.python.org/pep-0508/#environment-markers

[monchin]

Thank you! but I tried and found

pdm add "pypiwin32; sys_platform=='win32'"

works!