python.pkgs.systemd: 233 -> 234

also python library does not match with our systemd version, the
changes done in this release are systemd 233 and python 3.6 related.

pkgs/development/python-modules/systemd/default.nix

@@ -0,0 +1,24 @@
+{ stdenv, buildPythonPackage, fetchFromGitHub, systemd, pkgconfig }:
+
+buildPythonPackage rec {
+  name = "python-systemd-${version}";
+  version = "234";
+
+  src = fetchFromGitHub {
+    owner = "systemd";
+    repo = "python-systemd";
+    rev = "v${version}";
+    sha256 = "1fakw7qln44mfd6pj4kqsgyrhkc6cyr653id34kv0rdnb1bvysrz";
+  };
+
+  buildInputs = [ systemd ];
+  nativeBuildInputs = [ pkgconfig ];
+
+  doCheck = false;
+
+  meta = with stdenv.licenses; {
+    description = "Python module for native access to the systemd facilities";
+    homepage = http://www.freedesktop.org/software/systemd/python-systemd/;
+    license = licenses.lgpl21;
+  };
+}

pkgs/top-level/python-packages.nix

@@ -24042,25 +24042,8 @@ in {
     };
   };
 
-  systemd = buildPythonPackage rec {
-    version = "233";
-    name = "python-systemd-${version}";
-
-    src = pkgs.fetchurl {
-      url = "https://github.com/systemd/python-systemd/archive/v${version}.tar.gz";
-      sha256 = "1ryzv0d5y448mxpf2cx97rk0403w2w44bha8rqgww1fasx0c9dgg";
-    };
-
-    buildInputs = with pkgs; [ systemd pkgconfig ];
-
-    # Certain tests only run successfully on a machine w/ systemd.
-    doCheck = false;
-
-    meta = {
-      description = "Python module for native access to the systemd facilities";
-      homepage = http://www.freedesktop.org/software/systemd/python-systemd/;
-      license = licenses.lgpl21;
-    };
+  systemd = callPackage ../development/python-modules/systemd {
+    inherit (pkgs) pkgconfig systemd;
   };
 
   tabulate = buildPythonPackage rec {