python.pkgs.packet-python: move expression

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

···
+{ lib
+, buildPythonPackage
+, fetchPypi
+, requests
+, python
+}:
+
+buildPythonPackage rec {
+  pname = "packet-python";
+  version = "1.33";
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0bmvfmvjm8jx0y8sv0jf5mhv0h3v8idx0sc5myxs7ig200584dd3";
+  };
+  propagatedBuildInputs = [ requests ];
+
+  checkPhase = ''
+    ${python.interpreter} -m unittest discover -s test
+  '';
+
+  # Not all test files are included in archive
+  doCheck = false;
+
+  meta = {
+    description = "A Python client for the Packet API.";
+    homepage    = "https://github.com/packethost/packet-python";
+    license     = lib.licenses.lgpl3;
+    maintainers = with lib.maintainers; [ dipinhora ];
+  };
+}

pkgs/top-level/python-packages.nix

···
 
   whoosh = callPackage ../development/python-modules/whoosh { };
 
-  packet-python = buildPythonPackage rec {
-    name = "${pname}-${version}";
-    pname = "packet-python";
-    version = "1.33";
-    src = pkgs.fetchurl {
-      url = "https://pypi.python.org/packages/eb/82/f0506bd964501f958ac6a37e843ccb7bd9e712732886258314d55f0ec710/packet-python-1.33.tar.gz";
-      sha256 = "0bmvfmvjm8jx0y8sv0jf5mhv0h3v8idx0sc5myxs7ig200584dd3";
-    };
-    propagatedBuildInputs = with self; [ requests ];
-
-    meta = {
-      description = "A Python client for the Packet API.";
-      homepage    = "https://github.com/packethost/packet-python";
-      license     = licenses.lgpl3;
-      maintainers = with maintainers; [ dipinhora ];
-      platforms   = platforms.all;
-    };
-  };
+  packet-python = callPackage ../development/python-modules/packet-python { };
 
   pwntools = callPackage ../development/python-modules/pwntools { };