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How to use _restore_stream_handlers method in autotest

Best Python code snippet using autotest_python

logging_manager.py

Source:logging_manager.py

...362        fd_copy = os.dup(self._fd)363        self._fd_copy_stream = os.fdopen(fd_copy, 'w')364        self._redirect_logging_stream_handlers(self._stream,365                                               self._fd_copy_stream)366    def _restore_stream_handlers(self):367        """ point logging StreamHandlers back to the original FD """368        self._redirect_logging_stream_handlers(self._fd_copy_stream,369                                               self._stream)370        self._fd_copy_stream.close()371    def _redirect_logging_stream_handlers(self, old_stream, new_stream):372        """373        Redirect all configured logging StreamHandlers pointing to374        old_stream to point to new_stream instead.375        """376        for handler in _current_handlers():377            points_to_stream = (isinstance(handler, logging.StreamHandler) and378                                hasattr(handler.stream, 'fileno') and379                                handler.stream.fileno() == old_stream.fileno())380            if points_to_stream:381                logger.removeHandler(handler)382                handler.close() # doesn't close the stream, just the handler383                new_handler = logging.StreamHandler(new_stream)384                new_handler.setLevel(handler.level)385                new_handler.setFormatter(handler.formatter)386                for log_filter in handler.filters:387                    new_handler.addFilter(log_filter)388                logger.addHandler(new_handler)389    def start_logging(self):390        super(_FdRedirectionStreamManager, self).start_logging()391        self._point_stream_handlers_to_copy()392    def stop_logging(self):393        super(_FdRedirectionStreamManager, self).stop_logging()394        self._restore_stream_handlers()395    def _spawn_logging_subprocess(self):396        """397        Spawn a subprocess to log all input to the logging module with the398        current settings, and direct output to it.399        """400        read_end, write_end = os.pipe()401        pid = os.fork()402        if pid: # parent403            os.close(read_end)404            os.dup2(write_end, self._fd) # point FD to the subprocess405            os.close(write_end)406            return pid407        else: # child408            try:...

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