nixpkgs/pkgs/development/python-modules/pyyaml/default.nix


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{ lib, buildPythonPackage, fetchPypi, cython, libyaml, buildPackages }:

buildPythonPackage rec {
  pname = "PyYAML";
  version = "5.3.1";

  src = fetchPypi {
    inherit pname version;
    sha256 = "0pb4zvkfxfijkpgd1b86xjsqql97ssf1knbd1v53wkg1qm9cgsmq";
  };

  # force regeneration using Cython
  postPatch = ''
    rm ext/_yaml.c
  '';

  nativeBuildInputs = [ cython buildPackages.stdenv.cc ];

  buildInputs = [ libyaml ];

  meta = with lib; {
    description = "The next generation YAML parser and emitter for Python";
    homepage = "https://github.com/yaml/pyyaml";
    license = licenses.mit;
    maintainers = with maintainers; [ dotlambda ];
  };
}