Initial commit of Python queries and QL libraries.

python/ql/src/Metrics/FLinesOfCode.ql

@@ -0,0 +1,18 @@
+/**
+ * @name Lines of code in files
+ * @kind treemap
+ * @description Measures the number of lines of code in each file (ignoring lines that
+ *              contain only docstrings, comments or are blank).
+ * @treemap.warnOn highValues
+ * @metricType file
+ * @metricAggregate avg sum max
+ * @precision very-high
+ * @tags maintainability
+ * @id py/lines-of-code-in-files
+ */
+import python
+
+from Module m, int n
+where n = m.getMetrics().getNumberOfLinesOfCode()
+select m, n
+order by n desc