diff -r 672e3c4bbd0c -r 9864fe2067cd src/notes/apps.py
--- a/src/notes/apps.py	Mon Jul 17 14:13:32 2017 +0200
+++ b/src/notes/apps.py	Tue Jul 18 17:08:27 2017 +0200
@@ -3,3 +3,7 @@
 
 class NotesConfig(AppConfig):
     name = 'notes'
+
+    def ready(self):
+        # import signal handlers
+        import notes.signals