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-rw-r--r--ryu/services/protocols/bgp/utils/internable.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/ryu/services/protocols/bgp/utils/internable.py b/ryu/services/protocols/bgp/utils/internable.py
index ae39798c..9f5e8d95 100644
--- a/ryu/services/protocols/bgp/utils/internable.py
+++ b/ryu/services/protocols/bgp/utils/internable.py
@@ -14,6 +14,7 @@
# limitations under the License.
import weakref
+from six.moves import intern
dict_name = intern('_internable_dict')