try with standalone

rowers/tasks_standalone.py

@@ -0,0 +1,23 @@
+if __name__ == '__main__':
+    import django
+    from django.conf import settings
+    django.setup()
+
+import time
+from celery import app
+from django_rq import job
+from async_messages import message_user,messages
+from rowers.models import Workout
+from django.contrib.auth.models import User
+
+@app.task
+@job
+def addcomment2(userid,id):
+    print 'aap'
+    time.sleep(5)
+    w = Workout.objects.get(id=id)
+    w.notes += '\n the task has run'
+    w.save()
+    u = User.objects.get(id=userid)
+    messages.info(u,' The task has run')
+    return 1