How to replace old nixpkgs with mach-nix.mkPython

Hi, some python nixpkgs is old. I’m trying to use mach-nix to install that package from official registries (like pip) instead.

what I tried so far:

    (python3.withPackages (ps: with ps; [
      (mach-nix.mkPython {
        requirements = ''
          pynvim
          python-lsp-black
          python-lsp-server
          pylsp-mypy
        '';
      })
    ]))

but I don’t get the pylsp binary installed. This code is working:

    (python3.withPackages (ps: with ps; [
          pynvim
          python-lsp-black
          python-lsp-server
          pylsp-mypy
    ]))

but of course the version is older.

[sandangel]

not neccessary, just the pkgs.python3 from nixpkgs need to be aware of python packages from mach-nix. or if mach-nix also installing python, I need to configure neovim to point to that python.

[bjornfor]

I got /nix/store/10nbcgpi5vgbadacrd1b8aw0gfgpk293-python3-3.10.5/bin/python, but I want to have something like "${customPython.pkgs}/bin/python" in my nvim config instead of hard coding.

"${customPython.pkgs}/bin/python" -> "${import ./your-mach-nix-python-file.nix}/bin/python"?