From 75e40a85c1553ccf22bf7de1790ed360c9215b0f Mon Sep 17 00:00:00 2001
From: bwarsaw <>
Date: Sun, 29 Feb 2004 18:52:36 +0000
Subject: Load(): Before creating the .safety file, move any existing .pck or
 .db file to a .corrupt file, since it could not be read.  This should
 eliminate the shutil EPERM exceptions.

---
 Mailman/MailList.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'Mailman')

diff --git a/Mailman/MailList.py b/Mailman/MailList.py
index 7b57c143..26ecd015 100644
--- a/Mailman/MailList.py
+++ b/Mailman/MailList.py
@@ -610,9 +610,19 @@ class MailList(HTMLFormatter, Deliverer, ListAdmin,
         # copy the fallback into the primary so that the logic in Save() will
         # still work.  For giggles, we'll copy it to a safety backup.
         if file == plast:
+            # Move aside any existing pickle file
+            try:
+                os.rename(pfile, pfile + '.corrupt')
+            except OSError, e:
+                if e.errno <> errno.ENOENT: raise
             shutil.copy(file, pfile)
             shutil.copy(file, pfile + '.safety')
         elif file == dlast:
+            # Move aside any existing marshal file
+            try:
+                os.rename(dfile, dfile + '.corrupt')
+            except OSError, e:
+                if e.errno <> errno.ENOENT: raise
             shutil.copy(file, dfile)
             shutil.copy(file, pfile + '.safety')
         # Copy the loaded dictionary into the attributes of the current
-- 
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