Codestyle update

web/app/corpora/events.py

@@ -1,3 +1,4 @@
+from datetime import datetime
 from flask import current_app, request
 from flask_login import current_user
 from socket import gaierror
@@ -7,7 +8,6 @@ from ..events import connected_sessions
 from ..models import Corpus, User
 import cqi
 import math
-from datetime import datetime
 
 
 '''