pyloxi: support meter bands
diff --git a/py_gen/templates/common.py b/py_gen/templates/common.py
index 737ed64..c694b9b 100644
--- a/py_gen/templates/common.py
+++ b/py_gen/templates/common.py
@@ -32,6 +32,9 @@
 import sys
 import struct
 import action
+:: if version >= 4:
+import meter_band # for unpack_list
+:: #endif
 import const
 import util
 import loxi.generic_util