1 files changed, 1 insertions, 0 deletions

diff --git a/tests/__init__.py b/tests/__init__.py

index aab20e8e02..24006c949e 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -14,4 +14,5 @@
 # limitations under the License.
 
 from twisted.trial import util
+
 util.DEFAULT_TIMEOUT_DURATION = 10