{
  stdenv,
  lib,
  buildPythonPackage,
  fetchPypi,
  wasmer,
  wasmer-compiler-cranelift,
  py,
  pytestCheckHook,
  pytest-benchmark,
}:

buildPythonPackage rec {
  pname = "fastdiff";
  version = "0.3.0";
  format = "setuptools";

  src = fetchPypi {
    inherit pname version;
    sha256 = "4dfa09c47832a8c040acda3f1f55fc0ab4d666f0e14e6951e6da78d59acd945a";
  };

  postPatch = ''
    substituteInPlace setup.py \
      --replace 'pytest-runner' ""
    substituteInPlace setup.cfg \
      --replace "collect_ignore = ['setup.py']" ""
  '';

  propagatedBuildInputs = [
    wasmer
    wasmer-compiler-cranelift
  ];

  nativeCheckInputs = [
    py
    pytestCheckHook
    pytest-benchmark
  ];

  pytestFlagsArray = [ "--benchmark-skip" ];

  pythonImportsCheck = [ "fastdiff" ];

  meta = with lib; {
    description = "Fast native implementation of diff algorithm with a pure Python fallback";
    homepage = "https://github.com/syrusakbary/fastdiff";
    license = licenses.mit;
    maintainers = [ ];
    # resulting compiled object panics at import
    broken = stdenv.hostPlatform.is32bit;
  };
}