diff --git a/inc/python b/inc/python
index d9451b4..dfc4d63 100644
--- a/inc/python
+++ b/inc/python
@@ -15,6 +15,13 @@
 set +o xtrace
 
 
+# Global Config Variables
+
+# PROJECT_VENV contains the name of the virtual enviromnet for each
+# project.  A null value installs to the system Python directories.
+declare -A PROJECT_VENV
+
+
 # Python Functions
 # ================
 
@@ -105,7 +112,6 @@
                 -r $test_req
         fi
     fi
-    $xtrace
 }
 
 # get version of a package from global requirements file