GNU Radio 3.8 support

https://wiki.gnuradio.org/index.php/GNU_Radio_3.8_OOT_Module_Porting_Guide

Change-Id: I23dd638c8c48ed0a4b50559ce33fbd5e60b7dcbc
diff --git a/docs/doxygen/doxyxml/generated/index.py b/docs/doxygen/doxyxml/generated/index.py
index 7a70e14..5b54c66 100644
--- a/docs/doxygen/doxyxml/generated/index.py
+++ b/docs/doxygen/doxyxml/generated/index.py
@@ -1,16 +1,18 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 """
 Generated Mon Feb  9 19:08:05 2009 by generateDS.py.
 """
+from __future__ import absolute_import
+from __future__ import unicode_literals
 
 from xml.dom import minidom
 
 import os
 import sys
-import compound
+from . import compound
 
-import indexsuper as supermod
+from . import indexsuper as supermod
 
 class DoxygenTypeSub(supermod.DoxygenType):
     def __init__(self, version=None, compound=None):