anchor.diff:      substituteInPlace setup.py --replace /usr/share/doc/ share/doc/
   
       # see https://github.com/NixOS/nixpkgs/issues/4968
  -    ${python}/bin/${python.executable} setup.py install_data --install-dir=$out --root=$out
  +    ${python3.interpreter} setup.py install_data --install-dir=$out --root=$out
     '';
   
     postInstall = let
  -    sitePackages = "$out/lib/${python.libPrefix}/site-packages";
  +    sitePackages = "$out/${python3.sitePackages}";
     in ''
       # see https://github.com/NixOS/nixpkgs/issues/4968
       rm -rf ${sitePackages}/etc ${sitePackages}/usr ${sitePackages}/var;
  
positive.code: { stdenv, fetchFromGitHub, python, pythonPackages, gamin }:
  
  let version = "0.10.4"; in
  
  pythonPackages.buildPythonApplication {
    pname = "fail2ban";
    inherit version;
  
  
negative.code:     sha256 = "07ik6rm856q0ic2r7vbg6j3hsdcdgkv44hh5ck0c2y21fqwrck3l";
    };
  
    patches = [
      # 0.10.3 supports Python 3 but somehow this got into the way
      # https://github.com/fail2ban/fail2ban/issues/2255
      (fetchpatch {
        url = "https://github.com/fail2ban/fail2ban/commit/657b147c0d7830f3600f3dc7feaa4815a7e19fde.patch";
        sha256 = "1hrk2x7ssrfhab1wrjk5xw1sxhiv2735glfcp6qcj8x4dss3q7f7";
      })
    ];
  
    pythonPath = with python3.pkgs;
      stdenv.lib.optionals stdenv.isLinux [
        systemd
      ];
  
    preConfigure = ''
      for i in config/action.d/sendmail*.conf; do
  