This happens when you pass a db object to modules and you have threading issues (like you try to use it in a different thread than the one which created it).
On Tuesday, 30 October 2012 01:29:57 UTC-5, Hassan Alnatour wrote: > > Dear ALL , > > Am getting this error in a lot of places , i think its a user privilege > issue , at as i noticed a lot of people are having the same problem , so > did anyone solve this on a windows machine ?? and if you did it on a linux > machine please provide the solution two so we can help other with it two , > > Hope you can help us Massimo with this issue , i have been trying to > solve it for a couple of weeks now > > Best Regards, > > > > Versionweb2py™(2, 0, 9, datetime.datetime(2012, 9, 13, 23, 51, 30), > 'stable')Traceback > > 1. > 2. > 3. > 4. > 5. > 6. > 7. > 8. > 9. > 10. > 11. > 12. > 13. > 14. > 15. > 16. > 17. > 18. > 19. > 20. > 21. > 22. > 23. > 24. > 25. > 26. > 27. > > Traceback (most recent call last): > File "/users/www-data/web2py/gluon/********main.py", line 547, in wsgibase > session._try_store_on_disk(req********uest, response) > File "/users/www-data/web2py/gluon/********globals.py", line 686, in > _try_store_on_disk > cPickle.dump(dict(self), response.session_file) > File "/usr/lib/python2.7/copy_reg.**p******y", line 74, in _reduce_ex > getstate = self.__getstate__ > File "/users/www-data/web2py/gluon/********dal.py", line 7344, in __getattr__ > self.__allocate() > > File "/users/www-data/web2py/gluon/********dal.py", line 7337, in __allocate > > self._record = self._table[int(self)] > > File "/users/www-data/web2py/gluon/********dal.py", line 7624, in __getitem__ > return self._db(self._id == key).select(limitby=(0,1)).fir********st() > File "/users/www-data/web2py/gluon/********dal.py", line 8766, in select > return adapter.select(self.query,fiel********ds,attributes) > File "/users/www-data/web2py/gluon/********dal.py", line 2094, in select > return super(SQLiteAdapter, self).select(query, fields, attributes) > File "/users/www-data/web2py/gluon/********dal.py", line 1594, in select > return self._select_aux(sql,fields,at********tributes) > File "/users/www-data/web2py/gluon/********dal.py", line 1559, in _select_aux > self.execute(sql) > File "/users/www-data/web2py/gluon/********dal.py", line 1671, in execute > return self.log_execute(*a, **b) > File "/users/www-data/web2py/gluon/********dal.py", line 1665, in log_execute > ret = self.cursor.execute(*a, **b) > ProgrammingError: Cannot operate on a closed database. > > --
