anchor.diff:      unittest2 zope_testrunner selenium
     ];
   
  -  preCheck = ''
  -    rm tests/test_robot.py # A variable that is imported is commented out
  -  '';
  -
     postInstall = ''
       # Create a symlink for easier access to static data
       mkdir -p $out/share
  
positive.code:   passthru.tests = { inherit (nixosTests) searx; };
  
    meta = with lib; {
      homepage = "https://github.com/asciimoo/searx";
      description = "A privacy-respecting, hackable metasearch engine";
      license = licenses.agpl3Plus;
      maintainers = with maintainers; [ matejc fpletz globin danielfullmer ];
  
negative.code: 
  toPythonModule (buildPythonApplication rec {
    pname = "searx";
    version = "0.18.0";
  
    # Can not use PyPI because certain test files are missing.
    src = fetchFromGitHub {
      owner = "searx";
      repo = "searx";
      rev = "v${version}";
      sha256 = "0idxspvckvsd02v42h4z4wqrfkn1l8n59i91f7pc837cxya8p6hn";
    };
  
    postPatch = ''
      sed -i 's/==.*$//' requirements.txt
      # skip failing test
      sed -i '/test_json_serial(/,+3d' tests/unit/test_standalone_searx.py
    '';
  
    preBuild = ''
      export SEARX_DEBUG="true";
    '';
  
    propagatedBuildInputs = [
  