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-rw-r--r--tests/hazmat/primitives/test_hkdf.py1
1 files changed, 1 insertions, 0 deletions
diff --git a/tests/hazmat/primitives/test_hkdf.py b/tests/hazmat/primitives/test_hkdf.py
index 989709c6..367addc9 100644
--- a/tests/hazmat/primitives/test_hkdf.py
+++ b/tests/hazmat/primitives/test_hkdf.py
@@ -14,6 +14,7 @@
from __future__ import absolute_import, division, print_function
import pytest
+
import six
from cryptography.exceptions import (