AttributeError: 'module' object has no attribute 'UserDesc'

[Cyberdark]

When adding members via InviteNewMember, and he/she
receives the emails asking for confirmation, this is the
message shown when clicking:

Bug in Mailman version 2.1.3

We're sorry, we hit a bug!
If you would like to help us identify the problem, please
email a copy of this page to the webmaster for this site
with a description of what happened. Thanks!

Traceback:

Traceback (most recent call last):
  File "/usr/local/cpanel/3rdparty/mailman/scripts/driver",
line 87, in run_main
    main()

File "/usr/local/cpanel/3rdparty/mailman/Mailman/Cgi/conf
irm.py", line 98, in main
    content = Pending.confirm(cookie,expunge=0)

File "/usr/local/cpanel/3rdparty/mailman/Mailman/Pending.
py", line 125, in confirm
    db = _load()

File "/usr/local/cpanel/3rdparty/mailman/Mailman/Pending.
py", line 177, in _load
    return cPickle.load(fp)
AttributeError: 'module' object has no
attribute 'UserDesc'

------------------------------------------------------
--------------------------

Python information:
Variable Value
sys.version 2.2.2 (#1, Feb 24 2003, 19:13:11) [GCC
3.2.2 20030222 (Red Hat Linux 3.2.2-4)]
sys.executable /usr/bin/python2
sys.prefix /usr
sys.exec_prefix /usr
sys.path /usr
sys.platform linux2

------------------------------------------------------
--------------------------

Environment variables:
Variable Value
HTTP_COOKIE cyberdark.net-
publicidad_cyberdark.net+admin=28020000006935414b40
73280000003036383862303235613332633465656639303
3663931313636373239303764653936643035366334;
SERVER_SOFTWARE Apache
PYTHONPATH /usr/local/cpanel/3rdparty/mailman
SCRIPT_FILENAME /usr/local/cpanel/3rdparty/mailman/c
gi-bin/confirm
SERVER_ADMIN <email address hidden>
SCRIPT_NAME /mailman/confirm
REQUEST_METHOD GET
HTTP_HOST cyberdark.net
PATH_INFO /cyberdark.net-
publicidad_cyberdark.net/9e9879dd657f06ad0871de5631
6c40405d054fcf
SERVER_PROTOCOL HTTP/1.1
QUERY_STRING
REQUEST_URI /mailman/confirm/cyberdark.net-
publicidad_cyberdark.net/9e9879dd657f06ad0871de5631
6c40405d054fcf
HTTP_ACCEPT image/gif, image/x-xbitmap, image/jpeg,
image/pjpeg, application/msword, application/vnd.ms-
powerpoint, application/vnd.ms-excel, application/x-
shockwave-flash, */*
HTTP_USER_AGENT Mozilla/4.0 (compatible; MSIE 6.0;
Windows NT 5.1)
SERVER_NAME www.cyberdark.net
REMOTE_ADDR --
HTTP_CLIENT_IP --
REMOTE_PORT 58674
HTTP_ACCEPT_LANGUAGE es,eu;q=0.5
HTTP_VIA HTTP/1.1 proxy[AC1E0E47] (Traffic-
Server/5.5.1-59096 [uScM])
PATH_TRANSLATED /home/cdkadmin/public_html/cyberd
ark.net-
publicidad_cyberdark.net/9e9879dd657f06ad0871de5631
6c40405d054fcf
SERVER_PORT 80
GATEWAY_INTERFACE CGI/1.1
HTTP_X_FORWARDED_FOR --
HTTP_ACCEPT_ENCODING gzip, deflate
SERVER_ADDR --
DOCUMENT_ROOT /home/cdkadmin/public_html

[http://sourceforge.net/tracker/index.php?func=detail&aid=911648&group_id=103&atid=100103]

[Cdrum-users (cdrum-users)]

Me, too:

Traceback:

Traceback (most recent call last):
  File "/usr/local/mailman/scripts/driver", line 87, in run_main
    main()
  File "/usr/local/mailman/Mailman/Cgi/subscribe.py", line
96, in main
    process_form(mlist, doc, cgidata, language)
  File "/usr/local/mailman/Mailman/Cgi/subscribe.py", line
176, in process_form
    mlist.AddMember(userdesc, remote)
  File "/usr/local/mailman/Mailman/MailList.py", line 818,
in AddMember
    cookie = Pending.new(Pending.SUBSCRIPTION, userdesc)
  File "/usr/local/mailman/Mailman/Pending.py", line 80, in new
    db = _load()
  File "/usr/local/mailman/Mailman/Pending.py", line 191, in
_load
    return cPickle.load(fp)
AttributeError: 'module' object has no attribute 'UserDesc'

Python information:

Variable Value
sys.version 2.2.3 (#1, Mar 23 2004, 15:57:20) [GCC 2.96
20000731 (Red Hat Linux 7.3 2.96-110)]
sys.executable /usr/local/bin/python
sys.prefix /usr/local
sys.exec_prefix /usr/local
sys.path /usr/local
sys.platform linux2

Environment variables:

Variable Value
PATH_INFO /scac
HTTP_ACCEPT
text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,video/x-mng,image/png,image/jpeg,image/gif;q=0.2,*/*;q=0.1
CONTENT_TYPE application/x-www-form-urlencoded
HTTP_REFERER
http://listes.ambafrance-cn.org/mailman/listinfo/scac
SERVER_SOFTWARE Apache/1.3.27 (Unix) mod_ssl/2.8.14
OpenSSL/0.9.7b PHP/4.3.2
PYTHONPATH /usr/local/mailman
SCRIPT_FILENAME /usr/local/mailman/cgi-bin/subscribe
SERVER_ADMIN <email address hidden>
SCRIPT_NAME /mailman/subscribe
SERVER_SIGNATURE
Apache/1.3.27 Server at listes.ambafrance-cn.org Port 80
REQUEST_METHOD POST
HTTP_HOST listes.ambafrance-cn.org
HTTP_KEEP_ALIVE 300
SERVER_PROTOCOL HTTP/1.0
QUERY_STRING
HTTP_CACHE_CONTROL max-age=0
REQUEST_URI /mailman/subscribe/scac
CONTENT_LENGTH 92
HTTP_ACCEPT_CHARSET ISO-8859-1,utf-8;q=0.7,*;q=0.7
HTTP_USER_AGENT Mozilla/5.0 (Windows; U; Windows NT 5.1;
en-US; rv:1.6) Gecko/20040206 Firefox/0.8
HTTP_CONNECTION Keep-Alive
HTTP_COOKIE
mailman+admin=28020000006945236140732800000062356562353762313334663132343936653666376263323438663462386432623636303661366334;
scac+admin=2802000000691a666140732800000063376331326335313964613965323761366661633038643233393962396162623735323033643435;
epiaf+admin=28020000006908666140732800000038656237616332616332643431663930346334383833386365653831623837353363383332376662;
pekin_info+admin=280200000069ef656140732800000033383339303132636131653232393133306364323533626536313637303532366532313466346539;
label_france+admin=280200000069e3646140732800000038363561636439656263666463663732396165353165346461363331353036666639353164333564;
epiaf+user+cdrum--at--cdrum.com=280200000069b5646140732800000032646635333930633263353763393338623434333335663137646361646538316637643932623936;
test2-mod+admin=280200000069903d6140732800000035666162663162633239643662336230636363646661393938373461623538326139633562353766;
test2-mod+moderator=280200000069663d6140732800000064393932633162623539373139613634306532346530633866313863613331343264373536376562;
paris_shanghai+admin=280200000069126b6240732800000061383166376637616534336230356263646437633466656530313736646665326437366636636334
SER...