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path: root/nixpkgs/pkgs/development/python-modules/pyregion/default.nix
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{ lib
, stdenv
, buildPythonPackage
, fetchFromGitHub
, fetchpatch
# needed to build
, cython
, oldest-supported-numpy
, setuptools
, setuptools-scm
, wheel
# needed to run
, astropy
, numpy
, pyparsing
# needed to check
, pytestCheckHook
, pytest-astropy
}:

buildPythonPackage rec {
  pname = "pyregion";
  version = "2.2.0";
  pyproject = true;

  # pypi src contains cython-produced .c files which don't compile
  # with python3.9
  src = fetchFromGitHub {
    owner = "astropy";
    repo = pname;
    rev = version;
    hash = "sha256-r2STKnZwNvonXATrQ5q9NVD9QftlWI1RWl4F+GZSxVg=";
  };

  env = lib.optionalAttrs stdenv.cc.isClang {
    # Try to remove on next update.  generated code returns a NULL in a
    # function where an int is expected.
    NIX_CFLAGS_COMPILE = "-Wno-error=int-conversion";
  };

  propagatedBuildInputs = [
    astropy
    numpy
    pyparsing
  ];

  nativeBuildInputs = [
    cython
    oldest-supported-numpy
    setuptools
    setuptools-scm
    wheel
  ];

  nativeCheckInputs = [ pytestCheckHook pytest-astropy ];

  # Tests must be run in the build directory
  preCheck = ''
    pushd build/lib.*
  '';
  postCheck = ''
    popd
  '';

  meta = with lib; {
    changelog = "https://github.com/astropy/pyregion/blob/${version}/CHANGES.rst";
    description = "Python parser for ds9 region files";
    homepage = "https://github.com/astropy/pyregion";
    license = licenses.mit;
    maintainers = [ maintainers.smaret ];
  };
}