[Mailman-Users] Stack dump trying to "Approve" postings

[Mark Sapiro]

On 12/03/2013 10:23 AM, Rosenbaum, Larry M. wrote:
> 
> I have checked the traceback and found the following. What does it mean, and how do we fix it?
> 
> Dec 03 09:48:57 2013 admin(20706): @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
> admin(20706): [----- Mailman Version: 2.1.12 -----]
> admin(20706): [----- Traceback ------]
...
> admin(20706):   File "/usr/lib/mailman/Mailman/ListAdmin.py", line 254, in __handlepost
> admin(20706):     g(msg, 1)
> admin(20706): AttributeError: Generator instance has no __call__ method
> admin(20706): [----- Python Information -----]
> admin(20706): sys.version     =   2.6.6 (r266:84292, May 27 2013, 05:35:12)
> [GCC 4.4.7 20120313 (Red Hat 4.4.7-3)]


Mailman 2.1.12 is not compatible with Python 2.6+. This was fixed in 2.1.13.

This particular issue was fixed by this patch:

=== modified file 'Mailman/ListAdmin.py'
--- Mailman/ListAdmin.py	2008-09-21 18:59:44 +0000
+++ Mailman/ListAdmin.py	2009-08-01 00:40:36 +0000
@@ -1,4 +1,4 @@
-# Copyright (C) 1998-2008 by the Free Software Foundation, Inc.
+# Copyright (C) 1998-2009 by the Free Software Foundation, Inc.
 #
 # This program is free software; you can redistribute it and/or
 # modify it under the terms of the GNU General Public License
@@ -202,7 +202,7 @@
                     cPickle.dump(msg, fp, 1)
                 else:
                     g = Generator(fp)
-                    g(msg, 1)
+                    g.flatten(msg, 1)
                 fp.flush()
                 os.fsync(fp.fileno())
             finally:
@@ -251,7 +251,7 @@
             outfp = open(outpath, 'w')
             try:
                 g = Generator(outfp)
-                g(msg, 1)
+                g.flatten(msg, 1)
             finally:
                 outfp.close()
         # Now handle updates to the database


If RedHat EL6 is packaging Mailman 2.1.12 with Python 2.6.6, this is a
RedHat issue. See the FAQ at <http://wiki.list.org/x/OIDD>.

-- 
Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan