pythonSexy -> pythonPackages.libsexy

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

···
-{ stdenv, fetchurl, buildPythonPackage, libsexy, pkgconfig, libxml2, pygtk, pango, gtk2, glib, }:
+{ stdenv, fetchurl, mkPythonDerivation, libsexy, pkgconfig, libxml2, pygtk, pango, gtk2, glib }:
 
-stdenv.mkDerivation rec {
-  name = "python-libsexy-${version}";
+mkPythonDerivation rec {
+  name = "libsexy-${version}";
   version = "0.1.9";
 
   src = fetchurl {
···
     sha256 = "05bgcsxwkp63rlr8wg6znd46cfbhrzc5wh70jabsi654pxxjb39d";
   };
 
-  buildInputs = [
-    pkgconfig pygtk
-  ];
+  buildInputs = [ pkgconfig ];
 
   propagatedBuildInputs = [
-    libsexy gtk2 glib pango libxml2
+    pygtk libsexy gtk2 glib pango libxml2
   ];
 
   postInstall = ''

pkgs/top-level/all-packages.nix

···
 
   pythonIRClib = pythonPackages.pythonIRClib;
 
-  pythonSexy = callPackage ../development/python-modules/libsexy { };
+  pythonSexy = pythonPackages.libsexy;
 
   pytrainer = callPackage ../applications/misc/pytrainer { };
 

pkgs/top-level/python-packages.nix

···
     };
   };
 
+  libsexy = callPackage ../development/python-modules/libsexy {
+    libsexy = pkgs.libsexy;
+  };
 
   libthumbor = buildPythonPackage rec {
     name = "libthumbor-${version}";