AppendMessage(): Since we can't portably test the numeric/symbolic

error code raised by seek()ing before the end of a non-existant or
zero length file, we simply ignore all IOErrors that can result.

1 files changed, 3 insertions, 2 deletions

diff --git a/Mailman/Mailbox.py b/Mailman/Mailbox.py
index 4edad7e78..3eb47d6c3 100644
--- a/Mailman/Mailbox.py
+++ b/Mailman/Mailbox.py
@@ -40,8 +40,9 @@ class Mailbox(mailbox.UnixMailbox):
         try:
             self.fp.seek(-1, 2)
         except IOError, e:
-            if e.errno <> errno.EINVAL: raise
-            # the file must be empty
+            # Assume the file is empty.  We can't portably test the error code
+            # returned, since it differs per platform.
+            pass
         else:
             if self.fp.read(1) <> '\n':
                 self.fp.write('\n')