From 7b0af2d80d617915fb80e2ad9a8e16eff5d49c73 Mon Sep 17 00:00:00 2001
From: Andres Sanchez <asanchez@nearsoft.com>
Date: Wed, 31 Oct 2018 13:35:03 -0600
Subject: [PATCH] Handle loop exception in app.py

---
 sanic/app.py | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sanic/app.py b/sanic/app.py
index 8d9cf5b0..477fb6d6 100644
--- a/sanic/app.py
+++ b/sanic/app.py
@@ -835,6 +835,11 @@ class Sanic:
         access_log=True,
         **kwargs
     ):
+        try:
+            assert "loop" not in kwargs
+        except AssertionError:
+            raise TypeError("loop is not a valid argument. For asynchronous support, check https://sanic.readthedocs.io/en/latest/sanic/deploying.html#asynchronous-support")
+
         """Run the HTTP Server and listen until keyboard interrupt or term
         signal. On termination, drain connections before closing.