From dc7b5d5c4876b49f86ea2460698a335d0f5ef7c9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marwan=20Rabb=C3=A2a?=
 <1440729+waghanza@users.noreply.github.com>
Date: Tue, 4 Jun 2019 23:17:01 +0200
Subject: [PATCH] Fix compatility with tornado 6 (#2001)

---
 gunicorn/workers/gtornado.py | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/gunicorn/workers/gtornado.py b/gunicorn/workers/gtornado.py
index 40e5572a..c98acb85 100644
--- a/gunicorn/workers/gtornado.py
+++ b/gunicorn/workers/gtornado.py
@@ -105,9 +105,11 @@ class TornadoWorker(Worker):
         # instance of tornado.web.Application or is an
         # instance of tornado.wsgi.WSGIApplication
         app = self.wsgi
-        if not isinstance(app, tornado.web.Application) or \
-           isinstance(app, tornado.wsgi.WSGIApplication):
-            app = WSGIContainer(app)
+
+        if tornado.version_info[0] < 6:
+            if not isinstance(app, tornado.web.Application) or \
+            isinstance(app, tornado.wsgi.WSGIApplication):
+                app = WSGIContainer(app)
 
         # Monkey-patching HTTPConnection.finish to count the
         # number of requests being handled by Tornado. This