Numpy 2 is broken

[ashkan-leo]

Describe the issue

A project that contains numpy 2 fails to build given numpy 2 has no setup.py. Numpy 2 has a pyproject.toml instead. The error is as follow:

       last 10 log lines:
       > Executing setuptoolsBuildPhase
       > Traceback (most recent call last):
       >   File "/private/tmp/nix-build-python3.12-numpy-2.0.0.drv-0/numpy-2.0.0/nix_run_setup", line 8, in <module>
       >     exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\\r\\n', '\\n'), __file__, 'exec'))
       >                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
       >   File "/nix/store/65ackbgqn02p6fy75rksjbp17zj6440j-python3-3.12.3/lib/python3.12/tokenize.py", line 449, in open
       >     buffer = _builtin_open(filename, 'rb')
       >              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
       > FileNotFoundError: [Errno 2] No such file or directory: 'setup.py'
       > /nix/store/ashgigyp2dkvfi1spyl9nsnirvbk67vh-stdenv-darwin/setup: line 1588: pop_var_context: head of shell_variables not a function context
       For full logs, run 'nix log /nix/store/mv91j1n604svgjwqb6mcas9ykczf9z6c-python3.12-numpy-2.0.0.drv'.

default.nix/shell.nix/flake.nix:

{
  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;
      in
      {
        packages = {
          myapp = mkPoetryApplication { 
            projectDir = self; 
            python=pkgs.python312;
            };
        };

        defaultPackage = self.packages.${system}.myapp;

        # Shell for app dependencies.
        devShells.default = pkgs.mkShell {
          inputsFrom = [ self.packages.${system}.myapp ];
        };

        # Shell for poetry.
        devShells.poetry = pkgs.mkShell {
          packages = [ pkgs.poetry ];
        };
      });
}

pyproject.toml:

[tool.poetry]
name = "tradesim"
version = "0.1.0"
description = "Algorithmic trading simulator"
authors = ["ashkan-leo <ashkan.aleali@gmail.com>"]
readme = "README.md"

[tool.poetry.dependencies]
python = "^3.12"
numpy = "^2.0.0"
pandas = "^2.2.2"
matplotlib = "^3.9.0"
seaborn = "^0.13.2"
jupyterlab = "^4.2.2"

[build-system]
requires = ["poetry-core"]
build-backend = "poetry.core.masonry.api"

Any advise on how to fix the issue?

[TyberiusPrime]

It seems to be slightly more involved then sticking 'meson-python' into the build-sytem overrides, I tried :(.

Edit: Ah yes, it's overwritten in overrides/default.nix. PR incoming.

[TyberiusPrime]

Till the PR is merged, you can use my branch at https://github.com/TyberiusPrime/poetry2nix/numpy2 in your flake.nix to get unblocked.

[cpcloud]

Alternatively, you can use wheels via preferWheels = true (causes everything to prefer wheels), or set preferWheel = true for only numpy.

[TyberiusPrime]

At least for me, preferWheel does not lead the wheel being used (preferWheels does though). And yes, I'm using override.