I think I have finally™️ (for the third or so time) found myself a solution for :python: #Python development on :nixos: #NixOS that allows me to just work with #pythonPoetry et. al. as on other distros.
The solution is to pre-build an FHSUserEnv in your configuration.nix, e.g. like this¹.
When starting Python dev work, I now execute fhs (it's fast!), or directly fhs -c 'poetry shell' and everything works as expected, including #PyPI wheels etc.
@docRekd@publicvoit Of course. It's not a general solution to be able to do Python dev on NixOS. One needs a separate nix file per project (that alone is an absolute no-go). Even if you take the time and try to make one, still no guarantee that it works (even with preferWheels=true!). Weird errors arise with nix' typical awful error messages and at this point it's not useable for general Python dev. Maybe for specific standalone Python projects you want to #nix-ify.
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