howto catch an Exception and still print the TraceBack?

[Saizan]

In an event-driven application i'd like to keep the program alive regardless of any exceptions raised by the handlers,
but still be able to debug them by reading the appropriate TraceBack from stderr.
I can put something like:

try:
	self.call_handler(handler,*args)
except Exception, e:
	print e
	print e.args

in the dispatcher, but that isn't as helpful as a complete TraceBack.