[Twisted-Python] How do I get the reactor to stop on an exception
I'm running a rather involved simulation using twisted, and it would be preferable if I could get the reactor to just drop me into the interpreter on any exception so I could examine the current state of things. I set os.environ['PYTHONINSPECT'] = '1', but the reactor seems to trap any exceptions and just merrily carry on - logging my tracebacks to a file, but continuing to run - modifying the current state of things and making it harder to track down bugs. Is there an easy way to prevent the reactor from trapping exceptions? Thanks, Gerrat
On Tue, 3 Jun 2008 17:23:57 -0400, Gerrat Rickert <grickert@coldstorage.com> wrote:
Unit tests are a great way to squash bugs quickly and permanently.
No, there's not. However, you might be interested in the --debug option to twistd, which will drop you into pdb when an unhandled exception is raised. Jean-Paul
When using twistd or trial, you can simply use the debug command-line option for that (-b). Without those, twisted.python.failure.setDebugMode(True) or something, I forget the exact invocation. Both of these only go into debugger on Failure creation, but that's essentially any exception that goes into a Deferred or into the logging system, so virtually any exception you're likely to care about.
On Tue, 3 Jun 2008 17:23:57 -0400, Gerrat Rickert <grickert@coldstorage.com> wrote:
Unit tests are a great way to squash bugs quickly and permanently.
No, there's not. However, you might be interested in the --debug option to twistd, which will drop you into pdb when an unhandled exception is raised. Jean-Paul
When using twistd or trial, you can simply use the debug command-line option for that (-b). Without those, twisted.python.failure.setDebugMode(True) or something, I forget the exact invocation. Both of these only go into debugger on Failure creation, but that's essentially any exception that goes into a Deferred or into the logging system, so virtually any exception you're likely to care about.
participants (3)
-
Gerrat Rickert -
Itamar Shtull-Trauring -
Jean-Paul Calderone