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-rw-r--r--ryu/ofproto/ofproto_v1_3_parser.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/ryu/ofproto/ofproto_v1_3_parser.py b/ryu/ofproto/ofproto_v1_3_parser.py
index f8221f27..12c41df5 100644
--- a/ryu/ofproto/ofproto_v1_3_parser.py
+++ b/ryu/ofproto/ofproto_v1_3_parser.py
@@ -16,6 +16,7 @@
import collections
import struct
+import itertools
from ryu.lib import mac
from ryu import utils