Failing to install latest version with python 3.9.16 and pypi

[jabesq]

pip install rpds-py
Looking in indexes: https://pypi.org/simple
Collecting rpds-py
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... error
  error: subprocess-exited-with-error

  × Preparing metadata (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [14 lines of output]
      error: failed to parse manifest at `/private/var/folders/2x/lmlfhwrx449fvlxzyq5z8djr0000gn/T/pip-install-emrxykip/rpds-py_d9e40e1ca0f146599493c7411b8b98cf/Cargo.toml`

      Caused by:
        feature `edition2021` is required

        this Cargo does not support nightly features, but if you
        switch to nightly channel you can add
        `cargo-features = ["edition2021"]` to enable this feature
      💥 maturin failed
        Caused by: Cargo metadata failed. Does your crate compile with `cargo build`?
        Caused by: `cargo metadata` exited with an error:
      Error running maturin: Command '['maturin', 'pep517', 'write-dist-info', '--metadata-directory', '/private/var/folders/2x/lmlfhwrx449fvlxzyq5z8djr0000gn/T/pip-modern-metadata-k42g9uso', '--interpreter', '/Users/hugodupras/.pyenv/versions/3.9.16/bin/python3.9']' returned non-zero exit status 1.
      Checking for Rust toolchain....
      Running `maturin pep517 write-dist-info --metadata-directory /private/var/folders/2x/lmlfhwrx449fvlxzyq5z8djr0000gn/T/pip-modern-metadata-k42g9uso --interpreter /Users/hugodupras/.pyenv/versions/3.9.16/bin/python3.9`
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

No problem with python3.10 where it find the correct wheel on pypi

I'm on MacOS 13.4.1 x86

[Julian]

I think this will be fixed by the commit I just pushed (in v0.8.8). Will leave it open for a few minutes and close when we see if the wheels that are pushed now include macOS 3.9 ones.

Thanks for the issue.

[Julian]

OK indeed now there are cp39 wheels pushed for v0.8.8 so I think this should be fixed. Lemme know if not.

[jabesq]

Yes, it is now fixed, thanks

[cesarFrias]

I had the same error with python 3.8.3.
The problem was solved when I upgraded to python3.10