Archives May 19, 2005

Neat debugging trick from James Knight (Finding out what's hanging in your Twisted application...)


In response to my queries about how to catch a hanging application, James posted this wonderful little snippet of code:
import signal, pdb, sys
from twisted.internet import task

def timeout(*args):
sys.stderr.write("SIGALRM timeout, breaking into debugger.\n")
import pdb; pdb.set_trace()

signal.signal(signal.SIGALRM, timeout)

task.LoopingCall(signal.alarm, 10 ...

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