pythonPackages.pysatochip: fix build

{

  lib,

  buildPythonPackage,

  fetchPypi,

  fetchFromGitHub,

  certifi,

  cryptography,

  ecdsa,

  format = "setuptools";

  disabled = pythonOlder "3.6";

  src = fetchPypi {

    inherit pname version;

    hash = "sha256-ccyBvQ00p/uDULzGeJIhIJIiRRrFitsp271wep74DHI=";

  src = fetchFromGitHub {

    owner = "toporin";

    repo = "pysatochip";

    rev = "v${version}";

    hash = "sha256-7wA9erk2OA1FyNSzOSWJzjyp9QeYq6C+YA8B0Dk2iQE=";

  };

  postPatch = ''

    substituteInPlace requirements.txt \

      --replace "cryptography==3.3.2" "cryptography" \

      --replace "ecdsa==0.15" "ecdsa" \

      --replace "pyopenssl==20.0.0" "pyopenssl"

  '';

  propagatedBuildInputs = [

    cryptography

    ecdsa