Installing per pip3 fails

[shufps]

When trying to pip3 install perde it fails with:

maturin failed
        Caused by: The following metadata fields in `package.metadata.maturin` section of Cargo.toml are removed since maturin 0.14.0: classifier, requires-python, please set them in pyproject.toml as PEP 621 specifies.
      Error running maturin: Command '['maturin', 'pep517', 'write-dist-info', '--metadata-directory', '/tmp/pip-modern-metadata-y8ss37ju', '--interpreter', '/usr/bin/python3']' returned non-zero exit status 1.
      Checking for Rust toolchain....
      Running `maturin pep517 write-dist-info --metadata-directory /tmp/pip-modern-metadata-y8ss37ju --interpreter /usr/bin/python3`

[shufps]

Oh I overlooked that there were no changes at all for 3 years - so probably this library is abandoned and the issue can be closed.