anchor.diff:      owner = "plotly";
       repo = pname;
       rev = "refs/tags/v${version}";
  -    sha256 = "sha256-Qh5oOkTxEbxXXDX+g9TDa5DiYBlMpnx0yKsn/XMfMF0=";
  +    hash = "sha256-Qh5oOkTxEbxXXDX+g9TDa5DiYBlMpnx0yKsn/XMfMF0=";
     };
   
     propagatedBuildInputs = [
  
positive.code:     dash-html-components
      dash-table
    ];
  
    checkInputs = [
      pytestCheckHook
  
negative.code:     "tests/integration"
    ];
  
    pythonImportsCheck = [
      "dash"
    ];
  
    meta = with lib; {
      description = "Python framework for building analytical web applications";
      homepage = "https://dash.plot.ly/";
      license = licenses.mit;
      maintainers = with maintainers; [ antoinerg ];
    };
  }
  