pythonPackages.smugpy : move to separate expression

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

···
+{ stdenv, buildPythonPackage, fetchFromGitHub }:
+
+buildPythonPackage rec {
+  name    = pname + "-" + version;
+  pname   = "smugpy";
+  version = "20131218";
+
+  src = fetchFromGitHub {
+    owner  = "chrishoffman";
+    repo   = pname;
+    rev    = "f698d6749ce446e3d6c7d925b2cd1cd5b3d695ea";
+    sha256 = "029x6hm1744iznv4sw8sfyl974wmx1sqnr1k5dvzzwpk3ja49a1y";
+  };
+
+  meta = with stdenv.lib; {
+    description = "Python library for the SmugMug API";
+    license = with licenses; [ mit ];
+    homepage = https://github.com/chrishoffman/smugpy;
+  };
+
+  doCheck = false; # Tries to login to Smugmug…
+}

pkgs/top-level/python-packages.nix

···
     buildInputs = with self; [ pkgs.swig1 pkgs.coin3d pkgs.soqt pkgs.mesa pkgs.xorg.libXi ];
   };
 
-  smugpy = buildPythonPackage rec {
-    name    = pname + "-" + version;
-    pname   = "smugpy";
-    version = "20131218";
-
-    src = pkgs.fetchFromGitHub {
-      owner  = "chrishoffman";
-      repo   = pname;
-      rev    = "f698d6749ce446e3d6c7d925b2cd1cd5b3d695ea";
-      sha256 = "029x6hm1744iznv4sw8sfyl974wmx1sqnr1k5dvzzwpk3ja49a1y";
-    };
-
-    doCheck = false; # Tries to login to Smugmug…
-
-    propagatedBuildInputs = with self; [ ];
-  };
+  smugpy = callPackage ../development/python-modules/smugpy { };
 
   smugline = stdenv.mkDerivation rec {
     name    = pname + "-" + version;