Mach-nix: Create python environments quick and easy

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9

Nice! Instead of

let pkgs = import <nixpkgs> { };
in pkgs.mkShell {
  buildInputs = let
    python-with-pkgs = pkgs.python3.withPackages (ps:
      with ps;
      [
        # Figure out what to put here based on requirements.txt
      ]);
  in [ python-with-pkgs ];
}

I can now put this shell.nix alongside requirements.txt:

let
  mach-nix = import (builtins.fetchGit {
    url = "https://github.com/DavHau/mach-nix/";
    ref = "master";
    rev = "fa2bb2d33fb9b9dc3113046e4fcc16088f56981a";
  });
in mach-nix.mkPythonShell {
  requirements = builtins.readFile ./requirements.txt;
}

And it works in conjunction with lorri, too.

3 Likes