From 1312b4bcfdb85577b317f0024efe271aee18856b Mon Sep 17 00:00:00 2001
From: Benjamin Peterson <benjamin@python.org>
Date: Thu, 12 Feb 2009 03:50:00 +0000
Subject: [PATCH] os.fsync() should be used to ensure that data is written to
 disk

---
 Doc/library/stdtypes.rst | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Doc/library/stdtypes.rst b/Doc/library/stdtypes.rst
index b383a40829c..09ba2538fa1 100644
--- a/Doc/library/stdtypes.rst
+++ b/Doc/library/stdtypes.rst
@@ -2110,6 +2110,11 @@ Files have the following methods:
    Flush the internal buffer, like ``stdio``'s :cfunc:`fflush`.  This may be a
    no-op on some file-like objects.
 
+   .. note::
+
+      :meth:`flush` does not necessarily write the file's data to disk.  Use
+      :meth:`flush` followed by :func:`os.fsync` to ensure this behavior.
+
 
 .. method:: file.fileno()