{stdenv, python27Packages, six, cryptography}: python27Packages.buildPythonPackage rec {
  pname = "pyOpenSSL";
  version = "17.2.0";
  format = "setuptools";

  src = python27Packages.fetchPypi {
    inherit pname version;
    extension = "tar.gz";
    hash = "sha256-XWF842sHxR8zCqY7g79/JcQKDpWViHbVTRmC+MkbSDQ=";
  };

  propagatedBuildInputs = [python27Packages.setuptools six cryptography];
}