TypeError: not all arguments converted during string formatting

[daikuei]

How to Reproduce

While doing a GET operation on /admin/general/downloader, Trac issued an internal error.

(please provide additional details here)

Request parameters:

{'cat_id': u'general',
 'page': 1,
 'page_part': 'files',
 'panel_id': u'downloader',
 'path_info': None}

User agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:21.0) Gecko/20100101 Firefox/21.0

System Information

Trac	0.12.1
Babel	0.9.5
Genshi	0.6
mod_python	3.3.1
psycopg2	2.2.2
Pygments	1.3.1
Python	2.6.5 (r265:79063, Jul 5 2010, 11:47:21) [GCC 4.5.0 20100604 [gcc-4_5-branch revision 160292]]
pytz	2010h
setuptools	0.6c11
Subversion	1.6.9 (r901367)
jQuery	1.4.2

Enabled Plugins

cc-selector	0.0.3dev
PrivateWikis	1.0.0
SvnAuthzAdminPlugin	0.1.2.-Moved.to.Trac.0.11-
TicketExtPlugin	0.3.2
TracAccountManager	0.3.2
TracActiveDirectoryAuth	0.2.2
TracCustomFieldAdmin	0.2.8-r11265
TracDateField	1.0.1
TracDownloader	0.1
TracPrivateTickets	2.0.2
TracTags	0.6
TracWysiwyg	0.12.0.3-r9676
WorkflowEditorPlugin	1.1.5-r10055

Python Traceback

Traceback (most recent call last):
  File "/usr/lib/python2.6/site-packages/trac/web/main.py", line 511, in _dispatch_request
    dispatcher.dispatch(req)
  File "/usr/lib/python2.6/site-packages/trac/web/main.py", line 237, in dispatch
    resp = chosen_handler.process_request(req)
  File "/usr/lib/python2.6/site-packages/trac/admin/web_ui.py", line 121, in process_request
    path_info)
  File "build/bdist.linux-i686/egg/tracdownloader/admin.py", line 142, in process_admin_request
    template = self._serve_files_admin(req)
  File "build/bdist.linux-i686/egg/tracdownloader/admin.py", line 187, in _serve_files_admin
    render_downloads_table(self.env, req)
  File "build/bdist.linux-i686/egg/tracdownloader/model.py", line 167, in render_downloads_table
    files_obj, files_list = release.get_files()
  File "build/bdist.linux-i686/egg/tracdownloader/model.py", line 532, in get_files
    "ORDER BY sort, name", (str(self.id,)))
  File "/usr/lib/python2.6/site-packages/trac/db/util.py", line 65, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
TypeError: not all arguments converted during string formatting

[Ryan J Ollos]

See also #4214.