package `pytrec-eval` not available from any of the selected providers.

[quinn-dougherty]

When I put beir in requirements.txt:

The Package 'pytrec-eval' (build: ()) is not available from any of the selected providers ['nixpkgs', 'sdist', 'wheel']
 for the selected python version
The required package might just not (yet) be part of the dependency DB currently used.
The DB can be updated by specifying 'pypiDataRev' when importing mach-nix.
For examples see: https://github.com/DavHau/mach-nix/blob/master/examples.md
If it still doesn't work, there might have been an error while building the DB.
Please open an issue at: https://github.com/DavHau/mach-nix/issues/new

Same bug when I specify the latest commit of pypi-deps-db in pypiDataRev argument.

The pypi page for pytrec-eval is here: https://pypi.org/project/pytrec-eval/

[quinn-dougherty]

Is it because a download happens in setup.py, and would have to be overridden by a nix fetcher to be able to run? https://github.com/cvangysel/pytrec_eval/blob/master/setup.py