From 1ad05172cb5e2fafe85540e2525114843c693955 Mon Sep 17 00:00:00 2001
From: Aymeric Augustin <aymeric.augustin@m4x.org>
Date: Sat, 18 Aug 2012 10:24:23 +0200
Subject: [PATCH] [py3] Fixed file_storage tests.

---
 django/core/files/base.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/django/core/files/base.py b/django/core/files/base.py
index d7a8cb8539..4a422be90d 100644
--- a/django/core/files/base.py
+++ b/django/core/files/base.py
@@ -1,7 +1,7 @@
 from __future__ import unicode_literals
 
 import os
-from io import BytesIO
+from io import BytesIO, UnsupportedOperation
 
 from django.utils.encoding import smart_bytes, smart_text
 from django.core.files.utils import FileProxyMixin
@@ -64,8 +64,10 @@ class File(FileProxyMixin):
         if not chunk_size:
             chunk_size = self.DEFAULT_CHUNK_SIZE
 
-        if hasattr(self, 'seek'):
+        try:
             self.seek(0)
+        except (AttributeError, UnsupportedOperation):
+            pass
 
         while True:
             data = self.read(chunk_size)