# -*- coding: utf-8 -*-
# Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2018 All Rights Reserved
#
# Licensed under CLOUD LINUX LICENSE AGREEMENT
# http://cloudlinux.com/docs/LICENSE.TXT
#
# source code
# http://stackoverflow.com/questions/132058/showing-the-stack-trace-from-a-running-python-application
import code
import traceback
import signal
def debug(sig, frame):
"""
Interrupt running process, and provide a python prompt for
interactive debugging.
"""
d = {'_frame': frame} # Allow access to frame object
d.update(frame.f_globals) # Unless shadowed by global
d.update(frame.f_locals)
i = code.InteractiveConsole(d)
message = "Signal recieved : entering python shell.\nTraceback:\n"
message += ''.join(traceback.format_stack(frame))
i.interact(message)
def listen():
signal.signal(signal.SIGUSR1, debug) # Register handler
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