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_handl er(handler,*arg s)
except Exception, e:
print e
print e.args
in the dispatcher, but that isn't as helpful as a complete TraceBack. 5 1595
Saizan wrote: 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:
See
sys.exc_info()
The you can do:
try:
....
except: # catch all
_, e, tb = sys.exc_info()
print tb
Regards,
Diez
Op 2006-02-01, Saizan schreef <sa*******@gmai l.com>: 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_handl er(handler,*arg s) except Exception, e: print e print e.args
in the dispatcher, but that isn't as helpful as a complete TraceBack.
You mean something like this?
import traceback
import sys
try:
self.call_handl er(handler,*arg s)
except Exception, e:
Do_whatever_you need_to_do()
for msg in traceback.forma t_tb(sys.exc_in fo()[2]):
sys.stderr.writ e("%s\n" % msg)
I find the following very good for most needs:
try:
raise RuntimeError('e rr')
except:
import traceback;trace back.print_exc( )
-- if you use Pydev, there's a template for that called printexc.
Cheers,
Fabio
Saizan wrote: 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_handl er(handler,*arg s) except Exception, e: print e print e.args
in the dispatcher, but that isn't as helpful as a complete TraceBack.
Thanks, I had completely missed the module traceback...
I'll use traceback.print _exc(), it seems the most straightforward way.
The only flaw is that the traceback starts in the method where i catch the exception and not from "__main__", but I guess it can't be helped.
Saizan wrote: Thanks, I had completely missed the module traceback... I'll use traceback.print _exc(), it seems the most straightforward way. The only flaw is that the traceback starts in the method where i catch the exception and not from "__main__", but I guess it can't be helped.
Actually, I guess that if you wanted to check the 'upper stack', you
could do it by checking sys._getframe() to get the current frame and
then go upwards with frame.f_back (that's how debbugers work), that way
you could get info on all the stacks you currently have... so if you
think it's worth it... ;-P
Cheers,
Fabio This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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