5 ms·

We do the same with Nix, the shebang line looks like this: #! nix-shell -i python3 -p "python312.withPackages (pkgs: [ pkgs.boto3 pkgs.click ])" With this

We do the same with Nix, the shebang line looks like this: #! nix-shell -i python3 -p "python312.withPackages (pkgs: [ pkgs.boto3 pkgs.click ])" With this, the only requirement is Nix on the system, you don't even need Python to be installed!

skavi 2y ago
Yup, and you can apply the same technique to any language. The obvious example is bash with all the dependencies specified, but I’ve also hacked up quick single file rust scripts using nix shebangs. https://nixos.wiki/wiki/Nix-shell_shebang https://nixos.wiki/wiki/Nix-shell_shebang
execat 2y ago
How to do the same thing with `nix shell` (The flake based command) instead of `nix-shell`?
- skeledrew 2y ago
  Maybe `#! /usr/bin/env -S nix shell `?
- skavi 2y ago
  it is a bit more annoying: https://nix.dev/manual/nix/2.22/command-ref/new-cli/nix3-shell#use-as-a--interpreter https://nix.dev/manual/nix/2.22/command-ref/new-cli/nix3-she...
skowalak 2y ago
While that is true, there are still lots of PyPI packages not yet packaged with nixpkgs, so this is not as universal an approach as uv.
falcor84 2y ago
> you don't even need Python to be installed! Note that this is exactly the case in TFA - uv takes care of installing Python ad-hoc.
Tractor8626 2y ago
Having Nih installed is much stronger requirement than having uv
- aerzen 2y ago
  im not sure this is true
  - maleldil 2y ago
    Nix requires a bunch of stuff to setup and to understand. uv is just a binary in PATH.