Style fixes for interfaces imports
diff --git a/src/cryptography/hazmat/primitives/interfaces/__init__.py b/src/cryptography/hazmat/primitives/interfaces/__init__.py
index b025d15..fd1b25f 100644
--- a/src/cryptography/hazmat/primitives/interfaces/__init__.py
+++ b/src/cryptography/hazmat/primitives/interfaces/__init__.py
@@ -9,12 +9,9 @@
 import six
 
 from cryptography.hazmat.primitives.interfaces.ciphers import (
-    BlockCipherAlgorithm,
-    CipherAlgorithm,
-    Mode,
-    ModeWithAuthenticationTag,
-    ModeWithInitializationVector,
-    ModeWithNonce)
+    BlockCipherAlgorithm, CipherAlgorithm, Mode,
+    ModeWithAuthenticationTag, ModeWithInitializationVector, ModeWithNonce
+)
 
 __all__ = [
     "BlockCipherAlgorithm",