ProgrammingError: Cannot operate on a closed cursor.

[oezguen]

How to Reproduce

While doing a GET operation on /timeline, Trac issued an internal error.

(please provide additional details here)

System Information

Trac	0.11.5rc2
Python	2.5.2 (r252:60911, Feb 21 2008, 13:11:45) [MSC v.1310 32 bit (Intel)]
setuptools	0.6c9
SQLite	3.6.11
pysqlite	2.5.5
Genshi	0.5.1
mod_python	3.3.1
Subversion	1.6.3 (r38063)

Python Traceback

Traceback (most recent call last):
  File "C:\Python25\Lib\site-packages\trac\web\main.py", line 423, in _dispatch_request
    dispatcher.dispatch(req)
  File "C:\Python25\Lib\site-packages\trac\web\main.py", line 222, in dispatch
    req.session.save()
  File "C:\Python25\Lib\site-packages\trac\web\session.py", line 97, in save
    (self.sid,))
  File "C:\Python25\Lib\site-packages\trac\db\util.py", line 50, in execute
    return self.cursor.execute(sql_escape_percent(sql), args)
  File "C:\Python25\Lib\site-packages\trac\db\sqlite_backend.py", line 58, in execute
    args or [])
  File "C:\Python25\Lib\site-packages\trac\db\sqlite_backend.py", line 50, in _rollback_on_error
    return function(self, *args, **kwargs)
ProgrammingError: Cannot operate on a closed cursor.

[Christian Boos]

Are you using any plugins? If yes, which ones?

[Christian Boos]

See ​googlegroups:trac-dev:1f4d61c0d6533d53.