python.pkgs.Babel: move expression

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

@@ -0,0 +1,22 @@
+{ lib, buildPythonPackage, fetchPypi, pytz, pytest }:
+
+buildPythonPackage rec {
+  pname = "Babel";
+  version = "2.3.4";
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "0x98qqqw35xllpcama013a9788ly84z8dm1w2wwfpxh2710c8df5";
+  };
+
+  propagatedBuildInputs = [ pytz ];
+
+  checkInputs = [ pytest ];
+
+  meta = with lib; {
+    homepage = http://babel.edgewall.org;
+    description = "A collection of tools for internationalizing Python applications";
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ garbas ];
+  };
+}