of12: simplify importing
diff --git a/src/python/of12/__init__.py b/src/python/of12/__init__.py
index e69de29..36dd8fa 100644
--- a/src/python/of12/__init__.py
+++ b/src/python/of12/__init__.py
@@ -0,0 +1,10 @@
+# Allow accessing constants through the top-level module
+from cstruct import *
+
+# Allow accessing submodules without additional imports
+import action
+import bucket
+import instruction
+import match
+import message
+import parse