Oh that makes sense. So instead of figuring out how to get an editable install via poetry2nix, I should be trying to figure out why the import (test module importing app) is failing for whatever other reason.

This is what I needed to hear l0b0 , thanks for the hint.

When I set editablePackageSources.myapp = ./src, this should work right? So that when I edit ./src/myapp/test.py, I thought I should be able to see that change when I run python -m myapp.test, but the same code is executed for me.

pyproj/_datadir.pyx:148:33: Cannot assign type 'void (void *, int, const char ) except * nogil' to 'PJ_LOG_FUNCTION' (alias of 'void ()(void *, int, const char *) noexcept nogil'). Exception values are incompatible. Suggest adding 'noexcept' to the type of 'pyproj_log_function'.
https://github.com/nix-community/poetry2nix/issues/1645

pyproj/_datadir.pyx:148:33: Cannot assign type 'void (void *, int, const char ) except * nogil' to 'PJ_LOG_FUNCTION' (alias of 'void ()(void *, int, const char *) noexcept nogil'). Exception values are incompatible. Suggest adding 'noexcept' to the type of 'pyproj_log_function'.

https://github.com/nix-community/poetry2nix/issues/1645

pyproj/_datadir.pyx:148:33: Cannot assign type 'void (void *, int, const char ) except * nogil' to 'PJ_LOG_FUNCTION' (alias of 'void ()(void *, int, const char *) noexcept nogil'). Exception values are incompatible. Suggest adding 'noexcept' to the type of 'pyproj_log_function'.

https://github.com/nix-community/poetry2nix/issues/1645

Any ideas?

pyproj/_datadir.pyx:148:33: Cannot assign type 'void (void *, int, const char ) except * nogil' to 'PJ_LOG_FUNCTION' (alias of 'void ()(void *, int, const char *) noexcept nogil'). Exception values are incompatible. Suggest adding 'noexcept' to the type of 'pyproj_log_function'.

https://github.com/nix-community/poetry2nix/issues/1645

Any ideas?

Update: I've created a PR with the relevant failing test.

In reply to @x10an14:matrix.org
Anyone experienced "missing attribute" error recently? Wrt. `inputs.flake-utils.lib.eachDefaultSystem`. Once I made it follow my existing `flake-utils` input I get nix complaining about line 82 in poetry2nix's `flake.nix` on current `master` (`5a62572`).

Here's my flake.nix, stripped of non-Nix/poetry2nix related sturr:

{
  description = "A Nix-flake for poetry based python development ";

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

  outputs = {
    self,
    ...
  } @ inputs:
    inputs.flake-utils.lib.eachDefaultSystem (system: let
      pkgs = import inputs.nixpkgs {localSystem = {inherit system;};};
      inherit (inputs.poetry2nix.lib.mkPoetry2Nix { inherit pkgs; }) mkPoetryApplication;
      myapp = mkPoetryApplication {projectDir = self;};
    in {
      devShells.default = pkgs.mkShell {
        inputsFrom = [myapp];
        packages = with pkgs; [
          poetry
          (
            python3.withPackages (
              exts: [
                exts.ipython
              ]
            )
          )
        ];

        shellHook = ''
          ${pkgs.python3}/bin/python3 --version
          ${pkgs.poetry}/bin/poetry --version
        '';
      };
      packages = {
        inherit myapp;
      };
      packages.default = myapp;
    });
}

In reply to @x10an14:matrix.org

Here's my flake.nix, stripped of non-Nix/poetry2nix related sturr:

{
  description = "A Nix-flake for poetry based python development ";

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

  outputs = {
    self,
    ...
  } @ inputs:
    inputs.flake-utils.lib.eachDefaultSystem (system: let
      pkgs = import inputs.nixpkgs {localSystem = {inherit system;};};
      inherit (inputs.poetry2nix.lib.mkPoetry2Nix { inherit pkgs; }) mkPoetryApplication;
      myapp = mkPoetryApplication {projectDir = self;};
    in {
      devShells.default = pkgs.mkShell {
        inputsFrom = [myapp];
        packages = with pkgs; [
          poetry
          (
            python3.withPackages (
              exts: [
                exts.ipython
              ]
            )
          )
        ];

        shellHook = ''
          ${pkgs.python3}/bin/python3 --version
          ${pkgs.poetry}/bin/poetry --version
        '';
      };
      packages = {
        inherit myapp;
      };
      packages.default = myapp;
    });
}

In reply to @truh:matrix.org
You could try nixpkgs.follows = "poetry2nix/nixpkgs"; rather than the other way around.

Thanks for taking a look @truh! Huhm...
I agree that there's a channel mismatch between the two...

But how do you figure it's related to the error message? I don't see anywhere there might be a reference to a flake-utils version missing https://github.com/numtide/flake-utils?tab=readme-ov-file#eachdefaultsystem--system---attrs.

  `inputs.flake-utils.follows = "nixpkgs";` this shouldn't follow nixpkgs

In reply to @truh:matrix.org
You could try nixpkgs.follows = "poetry2nix/nixpkgs"; rather than the other way around.

  `inputs.flake-utils.follows = "nixpkgs";` 

this shouldn't follow nixpkgs

  inputs.flake-utils.follows = "nixpkgs";

this shouldn't follow nixpkgs

In reply to @truh:matrix.org

  `inputs.flake-utils.follows = "nixpkgs";` this shouldn't follow nixpkgs