def call_bad_cb(self, tb):
        """
        If bad_cb returns True then keep it
        :param tb: traceback that caused exception
        :return:
        """
        with LiveExecution.lock:
            if self.bad_cb and not self.bad_cb(tb):
                self.bad_cb = None
def call_bad_cb(self, tb):
        """
        If bad_cb returns True then keep it
        :param tb: traceback that caused exception
        :return:
        """
        with LiveExecution.lock:
            if self.bad_cb and not self.bad_cb(tb):
                self.bad_cb = None
def call_bad_cb ( self , tb ) : with LiveExecution . lock : if self . bad_cb and not self . bad_cb ( tb ) : self . bad_cb = None
If bad_cb returns True then keep it
        :param tb: traceback that caused exception
        :return:
If bad_cb returns True then keep it : param tb : traceback that caused exception : return :