anchor.diff:      owner = "gwww";
       repo = "elkm1";
       rev = version;
  -    sha256 = "04xidix6l5d9rqfwp6cmj6wvais04nlvz5ynp0zwgyjp9sh2nhp6";
  +    hash = "sha256-+rFW7qFpay/ebUz9EEB8nn0kuqVtVmG5ZHOWG2bMPts=";
     };
   
     nativeBuildInputs = [
  
positive.code:     pytestCheckHook
    ];
  
    patches = [
      # Switch to poetry-core, https://github.com/gwww/elkm1/pull/45
      (fetchpatch {
        name = "switch-to-poetry-core.patch";
        url = "https://github.com/gwww/elkm1/commit/807a17268498298908bf82af4933b158b37c8f32.patch";
        sha256 = "1539g8wsxppqj6dm6w81ps05frb8vrfaxahxn2cqs76zdhvly3p9";
      })
    ];
  
    pythonImportsCheck = [ "elkm1_lib" ];
  
    meta = with lib; {
  
negative.code: 
  buildPythonPackage rec {
    pname = "elkm1-lib";
    version = "1.2.0";
    format = "pyproject";
  
    disabled = pythonOlder "3.6";
  