From 98c9e3b3756717771fd6521dbb2dbec206ec5fc5 Mon Sep 17 00:00:00 2001
From: Randall Leeds <randall@bleeds.info>
Date: Mon, 28 Dec 2015 14:50:46 -0800
Subject: [PATCH] Catch sendfile failure from no file descriptor

If the filelike response object has no `fileno` attribute, then skip
trying to use sendfile rather than failing with an error.

Close #1160
---
 gunicorn/http/wsgi.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/gunicorn/http/wsgi.py b/gunicorn/http/wsgi.py
index c537166ea..1d48467d1 100644
--- a/gunicorn/http/wsgi.py
+++ b/gunicorn/http/wsgi.py
@@ -355,6 +355,10 @@ def sendfile(self, respiter):
 
         try:
             fileno = respiter.filelike.fileno()
+        except AttributeError:
+            return False
+
+        try:
             offset = os.lseek(fileno, 0, os.SEEK_CUR)
             if self.response_length is None:
                 filesize = os.fstat(fileno).st_size