rp_logging.py 文件源码

def _log(self, level, msg, args,
             exc_info=None, extra=None, stack_info=False, attachment=None):
        """
        Low-level logging routine which creates a LogRecord and then calls
        all the handlers of this logger to handle the record.
        """
        sinfo = None
        if logging._srcfile:
            # IronPython doesn't track Python frames, so findCaller raises an
            # exception on some versions of IronPython. We trap it here so that
            # IronPython can use logging.
            try:
                fn, lno, func, sinfo = self.findCaller(stack_info)
            except ValueError:  # pragma: no cover
                fn, lno, func = '(unknown file)', 0, '(unknown function)'
        else:
            fn, lno, func = '(unknown file)', 0, '(unknown function)'

        if exc_info and not isinstance(exc_info, tuple):
            exc_info = sys.exc_info()

        record = self.makeRecord(
            self.name, level, fn, lno, msg, args, exc_info, func, extra, sinfo
        )
        record.attachment = attachment
        self.handle(record)