Under python2.3a2 and current CVS, this script:

       #!/usr/bin/python2.3
        import email.Utils
        d = '25 Feb 2003 13:47:26 -0800'
        print email.Utils.parsedate_tz(d)

prints 'None'.  It should print a tuple.

Here is a patch to the bug, which was apparently
introduced by _parseaddr.py rev 1.5.

tivopc ~ mips> diff -u _parseaddr.py~ _parseaddr.py
--- _parseaddr.py~      Fri Apr 18 19:21:10 2003
+++ _parseaddr.py       Fri Apr 18 19:23:08 2003
@@ -1,4 +1,4 @@
-# Copyright (C) 2002 Python Software Foundation
+# Copyright (C) 2002, 2003 Python Software Foundation
 
 """Email address parsing code.
 
@@ -54,9 +54,9 @@
         del data[0]
     else:
         i = data[0].rfind(',')
-        if i < 0:
-            return None
-        data[0] = data[0][i+1:]
+        if i >= 0:
+            # Trim off the leading dayname.
+            data[0] = data[0][i+1:]
     if len(data) == 3: # RFC 850 date, deprecated
         stuff = data[0].split('-')
         if len(stuff) == 3:

Logged In: YES 
user_id=12800

Thanks Bob.  I like Dan Berlin's patch in SF bug # 732761
better because it doesn't cause regressions in the test
suite.   I'm applying that patch.