diff --git a/writefru.py b/writefru.py
index b77f830..d623eb7 100755
--- a/writefru.py
+++ b/writefru.py
@@ -1,31 +1,36 @@
 #!/usr/bin/env python3
 
+import argparse
 import os
+
 import yaml
 from mako.template import Template
-import argparse
+
 
 def main():
     parser = argparse.ArgumentParser(
-        description="OpenPOWER FRU VPD parser and code generator")
+        description="OpenPOWER FRU VPD parser and code generator"
+    )
 
     parser.add_argument(
-        '-i', '--inventory_yaml', dest='inventory_yaml',
-        default='writefru.yaml', help='input inventory yaml file to parse')
+        "-i",
+        "--inventory_yaml",
+        dest="inventory_yaml",
+        default="writefru.yaml",
+        help="input inventory yaml file to parse",
+    )
     args = parser.parse_args()
 
-    with open(os.path.join(script_dir, args.inventory_yaml), 'r') as fd:
+    with open(os.path.join(script_dir, args.inventory_yaml), "r") as fd:
         yamlDict = yaml.safe_load(fd)
 
         # Render the mako template
-        template = os.path.join(script_dir, 'writefru.mako.hpp')
+        template = os.path.join(script_dir, "writefru.mako.hpp")
         t = Template(filename=template)
-        with open('writefru.hpp', 'w') as fd:
-            fd.write(
-                t.render(
-                    fruDict=yamlDict))
+        with open("writefru.hpp", "w") as fd:
+            fd.write(t.render(fruDict=yamlDict))
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     script_dir = os.path.dirname(os.path.realpath(__file__))
     main()