From: Andrew M. Kuchling <amk@amk.ca>
Date: Thu, 14 Dec 2006 18:59:07 +0000 (+0000)
Subject: [Patch #1599256 from David Watson] check that os.fsync is available before using it
X-Git-Tag: v2.5.1c1~217
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=a75d31619c75854e45ad20918e4300efe7507767;p=python

[Patch #1599256 from David Watson] check that os.fsync is available before using it
---

diff --git a/Lib/mailbox.py b/Lib/mailbox.py
index 108d874fe0..f9af494956 100755
--- a/Lib/mailbox.py
+++ b/Lib/mailbox.py
@@ -1887,7 +1887,8 @@ def _create_temporary(path):
 def _sync_flush(f):
     """Ensure changes to file f are physically on disk."""
     f.flush()
-    os.fsync(f.fileno())
+    if hasattr(os, 'fsync'):
+        os.fsync(f.fileno())
 
 def _sync_close(f):
     """Close file f, ensuring all changes are physically on disk."""