python_openzwave: Fix broken and missing dependencies.

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

@@ -1,6 +1,6 @@
 { stdenv, buildPythonPackage, fetchPypi, isPy3k
 , pkgconfig
-, systemd, libyaml, openzwave, cython
+, systemd, libyaml, openzwave, cython, pyserial
 , six, pydispatcher, urwid }:
 
 buildPythonPackage rec {
@@ -17,7 +17,7 @@ buildPythonPackage rec {
 
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [ systemd libyaml openzwave cython ];
-  propagatedBuildInputs = [ six urwid pydispatcher ];
+  propagatedBuildInputs = [ six urwid pydispatcher pyserial ];
 
   # primary location for the .xml files is in /etc/openzwave so we override the
   # /usr/local/etc lookup instead as that allows us to dump new .xml files into
@@ -27,6 +27,8 @@ buildPythonPackage rec {
       --replace /usr/local/etc/openzwave ${openzwave}/etc/openzwave
   '';
 
+  patches = [ ./cython.patch ];
+
   # no tests available
   doCheck = false;