anchor.diff:    nativeBuildInputs = [
       llvmPackages.clang
       pkg-config
  -    python
  -    maturin
  -    pipInstallHook
  -  ];
  +  ] ++ (with rustPlatform; [
  +    cargoSetupHook
  +    maturinBuildHook
  +  ]);
   
     buildInputs = [
       pcsclite
  
positive.code: { lib
  , stdenv
  , rustPlatform
  , fetchFromGitHub
  , pipInstallHook
  , llvmPackages
  , pkg-config
  , maturin
  , pcsclite
  , nettle
  , python
  , requests
  , vcrpy
  , numpy
  
negative.code: , PCSC
  }:
  
  buildPythonPackage rec {
    pname = "johnnycanencrypt";
    version = "0.5.0";
    disabled = pythonOlder "3.7";
  