From b5255114d1221f3fec027005a16dc61812eacf4b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20v=2E=20L=C3=B6wis?= <martin@v.loewis.de>
Date: Sun, 10 Mar 2002 15:59:58 +0000
Subject: [PATCH] Access the exception argument to see whether it starts with
 '500'. Fixes #527855.

---
 Lib/ftplib.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Lib/ftplib.py b/Lib/ftplib.py
index cad7a5b90db..aaf12fef6a2 100644
--- a/Lib/ftplib.py
+++ b/Lib/ftplib.py
@@ -487,8 +487,8 @@ class FTP:
             try:
                 return self.voidcmd('CDUP')
             except error_perm, msg:
-                if msg[:3] != '500':
-                    raise error_perm, msg
+                if msg.args[0][:3] != '500':
+                    raise
         elif dirname == '':
             dirname = '.'  # does nothing, but could return error
         cmd = 'CWD ' + dirname