def __init__(self, crawler=None):
        self.crawler = crawler
        try:
            signal.signal(signal.SIGUSR2, self.dump_stacktrace)
            signal.signal(signal.SIGQUIT, self.dump_stacktrace)
        except __HOLE__:
            # win32 platforms don't support SIGUSR signals
            pass
dataset/ETHPy150Open wcong/ants/ants/contrib/debug.py/StackTraceDump.__init__