{ stdenv, fetchurl, buildPythonPackage, ecdsa
, mnemonic, protobuf3_0, hidapi }:

buildPythonPackage rec{
  version = "0.7.3";
  name = "keepkey-${version}";

  src = fetchurl {
    url = "mirror://pypi/k/keepkey/${name}.tar.gz";
    sha256 = "14d2r8dlx997ypgma2k8by90acw7i3l7hfq4gar9lcka0lqfj714";
  };

  propagatedBuildInputs = [ protobuf3_0 hidapi ];

  buildInputs = [ ecdsa mnemonic ];

  # There are no actual tests: "ImportError: No module named tests"
  doCheck = false;

  # remove impossible dependency constraint
  postPatch = ''
    sed -i -e 's/hidapi==/hidapi>=/' setup.py
  '';

  meta = with stdenv.lib; {
    description = "KeepKey Python client";
    homepage = https://github.com/keepkey/python-keepkey;
    license = licenses.gpl3;
    maintainers = with maintainers; [ np ];
  };
}