eliminate remaining reference to /opt/planetstack from python files
diff --git a/planetstack/hpc_observer/hpclib.py b/planetstack/hpc_observer/hpclib.py
index a4fa3b9..7986540 100644
--- a/planetstack/hpc_observer/hpclib.py
+++ b/planetstack/hpc_observer/hpclib.py
@@ -5,7 +5,7 @@
 import xmlrpclib
 
 if __name__ == '__main__':
-    sys.path.append("/opt/planetstack")
+    sys.path.append("/opt/xos")
     os.environ.setdefault("DJANGO_SETTINGS_MODULE", "planetstack.settings")
 
 from planetstack.config import Config