Initial commit of Python queries and QL libraries.

python/ql/src/Metrics/ModuleEfferentCoupling.ql

@@ -0,0 +1,18 @@
+/**
+ * @name Outgoing module dependencies
+ * @description The number of modules that this module depends upon.
+ * @kind treemap
+ * @id py/efferent-coupling-per-file
+ * @treemap.warnOn highValues
+ * @metricType file
+ * @metricAggregate avg max
+ * @tags testability
+ *       modularity
+ */
+
+import python
+
+from ModuleMetrics m
+select m, m.getEfferentCoupling() as n
+order by n desc
+