log.py 文件源码

def exception(self, message=None):
        "Log an exception as an error and debug if we're doing that."
        extype, ex, tb = sys.exc_info()
        message = "Exception: %s%s%s" % (
            message + ': ' if message is not None else '',
            ''.join(traceback.format_exception_only(extype, ex)),
            ''.join(traceback.format_exception(extype, ex, tb)).strip()
        )
        if self.forced_debug:
            self.debug(message)
        else:
            self.error(message)

    # Forced setting of debug level