Merge pull request #6 from mkumatag/pep8

Fix pep8 errors
diff --git a/rest-dbus b/rest-dbus
index 8d759f6..2fc5316 100644
--- a/rest-dbus
+++ b/rest-dbus
@@ -7,7 +7,7 @@
 import os
 import sys
 from xml.etree import ElementTree
-from OpenBMCMapper import IntrospectionParser
+from obmc.dbuslib.introspection import IntrospectionParser
 
 busses = {
     'system': dbus.SystemBus,