Initial commit of Python queries and QL libraries.

python/ql/src/Lexical/FCommentedOutCode.ql

@@ -0,0 +1,20 @@
+/**
+ * @name Lines of commented-out code in files
+ * @description The number of lines of commented out code per file
+ * @kind treemap
+ * @treemap.warnOn highValues
+ * @metricType file
+ * @precision high
+ * @tags maintainability
+ * @id py/lines-of-commented-out-code-in-files
+ */
+
+import python
+import Lexical.CommentedOutCode
+
+import python
+
+from File f, int n
+where n = count(CommentedOutCodeLine c | not c.maybeExampleCode() and c.getLocation().getFile() = f)
+select f, n
+order by n desc