diff --git a/src/pdmgen.py b/src/pdmgen.py
index 9f328bb..55464a9 100755
--- a/src/pdmgen.py
+++ b/src/pdmgen.py
@@ -17,12 +17,13 @@
 
 import os
 import sys
-import yaml
-import mako.lookup
 from argparse import ArgumentParser
-from sdbusplus.renderer import Renderer
-from sdbusplus.namedelement import NamedElement
+
+import mako.lookup
 import sdbusplus.property
+import yaml
+from sdbusplus.namedelement import NamedElement
+from sdbusplus.renderer import Renderer
 
 
 class InvalidConfigError(Exception):