Unsubscribe fails with buffer exception

[Chimprawk]

A user subscribed themselves with a trailing space (%00),
and now all efforts to unsubscribe the user fail:

From the web interface, you can select the user and
"unsubscribe" them, but they remain on the list (mailman
returns no confirmation message)

With the remove_members utility, it tells me "No such
member", even though find_members "finds" the member.
I've munged the address every way possible (using python
and shell regexps, adding Unicode, etc) and still can't get the
member to unsubscribe.

I googled for an answer to this problem, and this seems to
be the only solution:

http://<email address hidden>/
msg21153.html

I'd say since the solution requires editing a binary, this
qualifies as a bug.

I've also searched the bug archive and couldn't really come
up with an answer; I do realize that my searches might not
have been correct, so if the answer is in the bug database, I
apologize.

Thank you very much,
Fred

Included is the traceback:

Traceback:

Traceback (most recent call last):
File "/usr/local/mailman/scripts/driver", line 87, in run_main
main()
File "/usr/local/mailman/Mailman/Cgi/admin.py", line 169, in
main
change_options(mlist, category, subcat, cgidata, doc)
File "/usr/local/mailman/Mailman/Cgi/admin.py", line 1376,
in
change_options
newname = Utils.canonstr(newname,
mlist.preferred_language)
File "/usr/local/mailman/Mailman/Utils.py", line 722, in
canonstr
parts = re.split(r'&(?P[^;]+);', s)
File "/usr/src/build/215241-i386/install/usr/lib/python2.2/
sre.py", line
156, in split
return _compile(pattern, 0).split(string, maxsplit)
TypeError: expected string or buffer

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

Python information:
Variable Value
sys.version 2.2.2 (#1, Jan 30 2003, 21:26:22) [GCC
2.96 20000731 (Red Hat
Linux 7.3 2.96-112)]
sys.executable /usr/bin/python2
sys.prefix /usr
sys.exec_prefix /usr
sys.path /usr
sys.platform linux2

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

Environment variables:
Variable Value
PATH_INFO /contemporaries/members
HTTP_ACCEPT image/gif, image/x-xbitmap, image/jpeg,
image/pjpeg,
application/vnd.ms-excel, application/msword,
application/vnd.ms-powerpoint, */*
CONTENT_TYPE multipart/form-data;
boundary=---------------------------7d4ae20610182
HTTP_REFERER
http://lists.ibiblio.org/mailman/admin/contemporaries/
members?letter=a&chunk=0
SERVER_SOFTWARE Apache/1.3.29 (Unix) mod_ssl/2.8.16
OpenSSL/0.9.6b
PHP/4.3.3 mod_perl/1.29
PYTHONPATH /usr/local/mailman
SCRIPT_FILENAME /usr/local/mailman/cgi-bin/admin
SERVER_ADMIN <email address hidden>
SCRIPT_NAME /mailman/admin
SCRIPT_URI http://lists.ibiblio.org/mailman/admin/
contemporaries/members
SERVER_SIGNATURE Apache/1.3.29 Server at lists.ibiblio.org
Port 80
REQUEST_METHOD POST
HTTP_HOST lists.ibiblio.org
SCRIPT_URL /mailman/admin/contemporaries/members
SERVER_PROTOCOL HTTP/1.1
QUERY_STRING
HTTP_CACHE_CONTROL no-cache
REQUEST_URI /mailman/admin/contemporaries/members
CONTENT_LENGTH 2873
HTTP_USER_AGENT Mozilla/4.0 (compatible; MSIE 5.5;
Windows NT 5.0; (R1
1.3))
HTTP_CONNECTION Keep-Alive
HTTP_COOKIE
contemporaries+admin=28020000006934c9fd3f73280000006
234353264653936346633613065306334626530633439356263
6437636238376261613131643430
SERVER_NAME lists.ibiblio.org
REMOTE_ADDR 12.107.204.12
REMOTE_PORT 14877
HTTP_ACCEPT_LANGUAGE en-us
PATH_TRANSLATED /home/www/contemporaries/members
SERVER_PORT 80
GATEWAY_INTERFACE CGI/1.1
HTTP_ACCEPT_ENCODING gzip, deflate
SERVER_ADDR 152.2.210.119
DOCUMENT_ROOT /home/www

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