description = "Application packaged using poetry2nix";

  inputs = {
    flake-utils.url = "github:numtide/flake-utils";
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable-small";
    poetry2nix = {
      url = "github:nix-community/poetry2nix";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };


  outputs = { self, nixpkgs, flake-utils, poetry2nix }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = nixpkgs.legacyPackages.${system};

        inherit (poetry2nix.lib.mkPoetry2Nix { inherit pkgs; }) mkPoetryApplication overrides;

				mk = mkPoetryApplication {
				  projectDir = ./.;
				  overrides = overrides.withDefaults (self: super: {
				
				    pathspec = super.pathspec.overridePythonAttrs (
				      old: {
				        buildInputs = (old.buildInputs or [ ]) ++ [ self.flit-core ];
				      }
				    );
				  });
				};

      in
      {

        packages = {
          myapp = mk;
          default = self.packages.${system}.myapp;
        };

        # Shell for app dependencies: 
        # Use this shell for developing your app: 	nix develop
        devShells.default = pkgs.mkShell {
          inputsFrom = [ self.packages.${system}.myapp ];
        };

        # Shell for poetry.
        # Use this shell for changes to pyproject.toml and poetry.lock: nix develop .#poetry
        devShells.poetry = pkgs.mkShell {
          packages = [ pkgs.poetry ];
        };
      });
}

with the following error: ``` warning: Git tree '/home/kativen/universita/statistical_learning' is dirty
error: builder for '/nix/store/65p128giakz2k87slj0mphllvk9fcn2r-python3.11-docutils-0.21.2.drv' failed with exit code 2;
last 10 log lines:
> File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
> File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
> File "<frozen importlib._bootstrap>", line 1126, in _find_and_load_unlocked
> File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
> File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
> File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
> File "<frozen importlib._bootstrap>", line 1140, in _find_and_load_unlocked
> ModuleNotFoundError: No module named 'flit_core'
>
>
For full logs, run 'nix log /nix/store/65p128giakz2k87slj0mphllvk9fcn2r-python3.11-docutils-0.21.2.drv'.
error: 1 dependencies of derivation '/nix/store/qhqqkxwv2hn4iyqh6i7bp8yrnz2gazih-python3.11-flit-3.9.0.drv' failed to build
error (ignored): error: cannot unlink '/tmp/nix-build-python3.11-pyyaml-6.0.1.drv-0': Directory not empty
error: 1 dependencies of derivation '/nix/store/sbhbrhkfx74cwklf0vccjffm659v3wd8-nix-shell-env.drv' failed to build

with the following error: ``` warning: Git tree '/home/kativen/universita/statistical_learning' is dirty
error: builder for '/nix/store/65p128giakz2k87slj0mphllvk9fcn2r-python3.11-docutils-0.21.2.drv' failed with exit code 2;
last 10 log lines:

File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
File "<frozen importlib._bootstrap>", line 1126, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
File "<frozen importlib._bootstrap>", line 1140, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'flit_core'

For full logs, run 'nix log /nix/store/65p128giakz2k87slj0mphllvk9fcn2r-python3.11-docutils-0.21.2.drv'.
error: 1 dependencies of derivation '/nix/store/qhqqkxwv2hn4iyqh6i7bp8yrnz2gazih-python3.11-flit-3.9.0.drv' failed to build
error (ignored): error: cannot unlink '/tmp/nix-build-python3.11-pyyaml-6.0.1.drv-0': Directory not empty
error: 1 dependencies of derivation '/nix/store/sbhbrhkfx74cwklf0vccjffm659v3wd8-nix-shell-env.drv' failed to build ```

with the following error: warning: Git tree '/home/kativen/universita/statistical_learning' is dirty
error: builder for '/nix/store/65p128giakz2k87slj0mphllvk9fcn2r-python3.11-docutils-0.21.2.drv' failed with exit code 2;
last 10 log lines:

File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
File "<frozen importlib._bootstrap>", line 1126, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
File "<frozen importlib._bootstrap>", line 1204, in _gcd_import
File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
File "<frozen importlib._bootstrap>", line 1140, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'flit_core'

For full logs, run 'nix log /nix/store/65p128giakz2k87slj0mphllvk9fcn2r-python3.11-docutils-0.21.2.drv'.
error: 1 dependencies of derivation '/nix/store/qhqqkxwv2hn4iyqh6i7bp8yrnz2gazih-python3.11-flit-3.9.0.drv' failed to build
error (ignored): error: cannot unlink '/tmp/nix-build-python3.11-pyyaml-6.0.1.drv-0': Directory not empty
error: 1 dependencies of derivation '/nix/store/sbhbrhkfx74cwklf0vccjffm659v3wd8-nix-shell-env.drv' failed to build ```

error: builder for '/nix/store/65p128giakz2k87slj0mphllvk9fcn2r-python3.11-docutils-0.21.2.drv' failed with exit code 2;
last 10 log lines:

> File "\<frozen importlib.\_bootstrap>", line 1204, in \_gcd\_import
> File "\<frozen importlib.\_bootstrap>", line 1176, in \_find\_and\_load
> File "\<frozen importlib.\_bootstrap>", line 1126, in \_find\_and\_load\_unlocked
> File "\<frozen importlib.\_bootstrap>", line 241, in \_call\_with\_frames\_removed
> File "\<frozen importlib.\_bootstrap>", line 1204, in \_gcd\_import
> File "\<frozen importlib.\_bootstrap>", line 1176, in \_find\_and\_load
> File "\<frozen importlib.\_bootstrap>", line 1140, in \_find\_and\_load\_unlocked
> ModuleNotFoundError: No module named  flit\_core

For full logs, run 'nix log /nix/store/65p128giakz2k87slj0mphllvk9fcn2r-python3.11-docutils-0.21.2.drv'.
error: 1 dependencies of derivation '/nix/store/qhqqkxwv2hn4iyqh6i7bp8yrnz2gazih-python3.11-flit-3.9.0.drv' failed to build
error (ignored): error: cannot unlink '/tmp/nix-build-python3.11-pyyaml-6.0.1.drv-0': Directory not empty
error: 1 dependencies of derivation '/nix/store/sbhbrhkfx74cwklf0vccjffm659v3wd8-nix-shell-env.drv' failed to build  ```

In reply to @kativen:matrix.org

error: builder for '/nix/store/65p128giakz2k87slj0mphllvk9fcn2r-python3.11-docutils-0.21.2.drv' failed with exit code 2;
last 10 log lines:

> File "\<frozen importlib.\_bootstrap>", line 1204, in \_gcd\_import
> File "\<frozen importlib.\_bootstrap>", line 1176, in \_find\_and\_load
> File "\<frozen importlib.\_bootstrap>", line 1126, in \_find\_and\_load\_unlocked
> File "\<frozen importlib.\_bootstrap>", line 241, in \_call\_with\_frames\_removed
> File "\<frozen importlib.\_bootstrap>", line 1204, in \_gcd\_import
> File "\<frozen importlib.\_bootstrap>", line 1176, in \_find\_and\_load
> File "\<frozen importlib.\_bootstrap>", line 1140, in \_find\_and\_load\_unlocked
> ModuleNotFoundError: No module named  flit\_core

For full logs, run 'nix log /nix/store/65p128giakz2k87slj0mphllvk9fcn2r-python3.11-docutils-0.21.2.drv'.
error: 1 dependencies of derivation '/nix/store/qhqqkxwv2hn4iyqh6i7bp8yrnz2gazih-python3.11-flit-3.9.0.drv' failed to build
error (ignored): error: cannot unlink '/tmp/nix-build-python3.11-pyyaml-6.0.1.drv-0': Directory not empty
error: 1 dependencies of derivation '/nix/store/sbhbrhkfx74cwklf0vccjffm659v3wd8-nix-shell-env.drv' failed to build  ```

Hey y'all!

I'm working on nixifying a Python application, and chose to use poetry2nix due to previous familiarity.
Originally the project used hatch (not really relevant).

However, the end-result is a docker image (no surprises there).
And the docker image previously produces has much smaller size than the one generated by Nix.
(I'm leveraging nixpkgs's dockerTools.buildImage on the mkPoetryApplication).

Hey y'all!

I'm working on nixifying a Python application, and chose to use poetry2nix due to previous familiarity.
Originally the project used hatch (not really relevant).

However, the end-result is a docker image (no surprises there).
And the docker image previously produces has much smaller size than the one generated by Nix.
(I'm leveraging nixpkgs's dockerTools.buildImage on the mkPoetryApplication).

We're talking like 125MiB vs 527MiB.

In reply to @k900:0upti.me
Probably optional dependencies somewhere

In reply to @elonsroadster:matrix.org
I feel like I'm probably missing something obvious, but I'm curious about what the easiest way to support a dependency that is not in nixpkgs or pypi is. Should I just use the built in nixpkgs tooling to define a nix build for that package and then add an override