diff --git a/beat/web/common/signals/__init__.py b/beat/web/common/signals/__init__.py
index 1335f72f8165780bda9cfefa06a1a94b521b68db..5834638c1dd2a6fe35797219620bdfc7b14c394c 100644
--- a/beat/web/common/signals/__init__.py
+++ b/beat/web/common/signals/__init__.py
@@ -27,4 +27,4 @@
 
 import django.dispatch
 
-shared = django.dispatch.Signal(providing_args=['users', 'teams'])
+shared = django.dispatch.Signal(providing_args=["users", "teams"])
diff --git a/beat/web/common/signals/handlers.py b/beat/web/common/signals/handlers.py
index d56eb11a63c264b05fae1de8da250f053b77ce07..535a7f6a0ab289611e0a40fbd5d5081127d5c554 100644
--- a/beat/web/common/signals/handlers.py
+++ b/beat/web/common/signals/handlers.py
@@ -25,20 +25,20 @@
 #                                                                             #
 ###############################################################################
 
-from django.dispatch import receiver
+from actstream import action
 from django.contrib.auth.models import User
 from django.db.models import Q
-
-from actstream import action
+from django.dispatch import receiver
 
 from beat.web.team.models import Team
 
 from ..models import Shareable
 from ..signals import shared
 
+
 def send_related_sharing(verb, sender, **kwargs):
-    users = kwargs.get('users')
-    teams = kwargs.get('teams')
+    users = kwargs.get("users")
+    teams = kwargs.get("teams")
 
     author = sender.author
 
@@ -53,8 +53,9 @@ def send_related_sharing(verb, sender, **kwargs):
             db_users = User.objects.filter(username__in=users)
 
         for user in db_users:
-            action.send(author, verb=verb, action_object=sender, target=user, public=False)
-
+            action.send(
+                author, verb=verb, action_object=sender, target=user, public=False
+            )
 
     if teams is not None and len(teams) > 0:
         # 'teams' might be a list of names or a list of DB objects
@@ -67,7 +68,7 @@ def send_related_sharing(verb, sender, **kwargs):
 
             for team_full_name in teams:
                 try:
-                    username, teamname = team_full_name.split('/')
+                    username, teamname = team_full_name.split("/")
                 except ValueError:
                     username = author
                     teamname = team_full_name
@@ -81,16 +82,18 @@ def send_related_sharing(verb, sender, **kwargs):
                 db_teams = Team.objects.filter(query)
 
         for team in db_teams:
-            action.send(author, verb=verb, action_object=sender, target=team, public=False)
+            action.send(
+                author, verb=verb, action_object=sender, target=team, public=False
+            )
 
 
 @receiver(shared)
 def on_shared(sender, **kwargs):
     sharing = sender.sharing
-    verb = 'has done nothing'
+    verb = "has done nothing"
     public = False
 
-    if hasattr(sender, 'author'):
+    if hasattr(sender, "author"):
         if sharing == Shareable.PUBLIC:
             verb = "has made public"
             public = True
@@ -117,4 +120,3 @@ def on_shared(sender, **kwargs):
             verb = "was privatized"
 
         action.send(sender, verb=verb, public=public)
-