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flake.nix
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flake.nix
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{
description = "Python shell flake";
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
flake-utils.url = "github:numtide/flake-utils";
mach-nix.url = "github:davhau/mach-nix";
};
outputs = { self, nixpkgs, mach-nix, flake-utils, ... }:
let
pythonVersion = "python37";
in
flake-utils.lib.eachDefaultSystem (system:
let
pkgs = nixpkgs.legacyPackages.${system};
mach = mach-nix.lib.${system};
pythonEnv = mach.mkPython {
python = pythonVersion;
requirements = builtins.readFile ./requirements.txt;
};
in
{
devShells.default = pkgs.mkShellNoCC {
packages = [ pythonEnv ];
shellHook = ''
export PYTHONPATH="${pythonEnv}/bin/python"
'';
};
}
);
}