diff --git a/pkgs/development/python-modules/WSME/default.nix b/pkgs/development/python-modules/WSME/default.nix
new file mode 100644
index 00000000000..fc2b066ce1e
--- /dev/null
+++ b/pkgs/development/python-modules/WSME/default.nix
@@ -0,0 +1,40 @@
+{ lib, buildPythonPackage, fetchPypi, isPy3k
+, pbr, six, simplegeneric, netaddr, pytz, webob
+, cornice, nose, webtest, pecan, transaction, cherrypy, sphinx }:
+
+buildPythonPackage rec {
+  pname = "WSME";
+  version = "0.8.0";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1nw827iz5g9jlfnfbdi8kva565v0kdjzba2lccziimj09r71w900";
+  };
+
+  checkPhase = ''
+    # remove turbogears tests as we don't have it packaged
+    rm tests/test_tg*
+    # remove flask since we don't have flask-restful
+    rm tests/test_flask*
+    # https://bugs.launchpad.net/wsme/+bug/1510823
+    ${if isPy3k then "rm tests/test_cornice.py" else ""}
+
+    nosetests tests/
+  '';
+
+  nativeBuildInputs = [ pbr ];
+
+  propagatedBuildInputs = [
+    six simplegeneric netaddr pytz webob
+  ];
+
+  checkInputs = [
+    cornice nose webtest pecan transaction cherrypy sphinx
+  ];
+
+  meta = with lib; {
+    description = "Simplify the writing of REST APIs, and extend them with additional protocols";
+    homepage = http://git.openstack.org/cgit/openstack/wsme;
+    license = licenses.mit;
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 246f92e8e73..54ec6192016 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -11165,34 +11165,7 @@ in {
     };
   };
 
-  WSME = buildPythonPackage rec {
-    name = "WSME-${version}";
-    version = "0.8.0";
-
-    src = pkgs.fetchurl {
-      url = "mirror://pypi/W/WSME/${name}.tar.gz";
-      sha256 = "1nw827iz5g9jlfnfbdi8kva565v0kdjzba2lccziimj09r71w900";
-    };
-
-    checkPhase = ''
-      # remove turbogears tests as we don't have it packaged
-      rm tests/test_tg*
-      # remove flask since we don't have flask-restful
-      rm tests/test_flask*
-      # https://bugs.launchpad.net/wsme/+bug/1510823
-      ${if isPy3k then "rm tests/test_cornice.py" else ""}
-
-      nosetests tests/
-    '';
-
-    propagatedBuildInputs = with self; [
-      pbr six simplegeneric netaddr pytz webob
-    ];
-    buildInputs = with self; [
-      cornice nose webtest pecan transaction cherrypy sphinx
-    ];
-  };
-
+  WSME = callPackage ../development/python-modules/WSME { };
 
   zake = buildPythonPackage rec {
     name = "zake-${version}";