Add the ability to install pip dependencies about pixi

[tdejager]

Yes @flying-sheep, we are working on doing it one go using our rust libsolv implementation. It is a bit tricky, but will keep you updated!

[flying-sheep]

Yup, thanks! As long as one of the issues stays up, I’ll be notified once you got that far!

[tdejager]

The plan to install pip dependencies for now.

1. Have a separate pip dependency section in the TOML.
2. Parse these and add pip as a dependency to the resolver.
3. Install pip into the environment.
4. Run pip install.

Extra's we could add:

1. Add a pip --dry-run --report - to check what dependencies are installed and if they do not overlap with the environment.
2. Use the grayskull file to see if the pip dependency does not exist as a conda one: https://github.com/regro/cf-graph-countyfair/blob/master/mappings/pypi/grayskull_pypi_mapping.yaml

[tdejager]

Branch: feat/add-pip-to-lock

[flying-sheep]

As said in #175 (comment), conda/mamba’s approach of first-us-then-pip isn’t a sound one, so I hope the “for now” does a lot of heavy lifting and you plan to resolve dependencies together at some point.

I generally avoid conda/mamba unless absolutely necessary to avoid problems with this.

[tdejager]

Closing this for: #175 I see that you are also involved there @flying-sheep :)

[kszlim]

Is that feature branch dead (to make way for the proper way maybe)?