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-rw-r--r--cryptography/hazmat/primitives/hmac.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/cryptography/hazmat/primitives/hmac.py b/cryptography/hazmat/primitives/hmac.py
index 9e1d8d02..18cf7f09 100644
--- a/cryptography/hazmat/primitives/hmac.py
+++ b/cryptography/hazmat/primitives/hmac.py
@@ -17,7 +17,8 @@ import six
from cryptography import utils
from cryptography.exceptions import (
- AlreadyFinalized, InvalidSignature, UnsupportedInterface)
+ AlreadyFinalized, InvalidSignature, UnsupportedInterface
+)
from cryptography.hazmat.backends.interfaces import HMACBackend
from cryptography.hazmat.primitives import constant_time, interfaces