seems like you are calling invalidate() or close() before calling invalidate() again, since both del __connection the first time. try calling connection.closed or connection.invalidated first.
On Aug 20, 2009, at 10:41 AM, ACB wrote: > > The system I work on connects to a number of different databases with > varying quality of network connectivity. As a result, I’ve modified > the application to run most transactions through a reconnect loop. > Initially the loop just created new connections when it retried a > transaction, but I’d prefer to implement something that takes > advantage of some of the connection API features. It works most of the > time, but on occasion I get the following error: > > (OperationalError) ORA-03113: end-of-file on communication channel > > Then the following trace back: > File "D:\data-repository\lib\database_manager.py", line 54, in > resume > connection.invalidate() > File "C:\Python26\lib\site-packages\sqlalchemy\engine\base.py", line > 635, in invalidate > if self.__connection.is_valid: > AttributeError: 'Connection' object has no attribute > '_Connection__connection' > > Is there a connection check I should be making before executing the > "invalidate" method or is this a bug in sqlalchemy? > > Thanks, > Anton Benard > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
