Merge pull request #672 from reaperhulk/add-future-import-hotp
Add missing future import to hotp
diff --git a/cryptography/hazmat/primitives/twofactor/hotp.py b/cryptography/hazmat/primitives/twofactor/hotp.py
index 0bc4cc5..535a94c 100644
--- a/cryptography/hazmat/primitives/twofactor/hotp.py
+++ b/cryptography/hazmat/primitives/twofactor/hotp.py
@@ -11,6 +11,8 @@
# See the License for the specific language governing permissions and
# limitations under the License.
+from __future__ import absolute_import, division, print_function
+
import struct
import six