Logger 对象可以使用 addHandler() 方法向自己添加零个或多个处理器对象。作为示例场景,应用程序可能希望将所有日志消息发送到日志文件,将错误或更高的所有日志消息发送到标准输出,以及将所有关键消息发送至一个邮件地址。 此方案需要三个单独的处理器,其中每个处理器负责将特定严重性的消息发送到特定位置。
to the logs, such the application, environment, etc. :param raise_on_indexing_exceptions: A boolean, True only for debugging purposes to raise exceptions caused when :return: A ready to be used CMRESHandler. """ logging.Handler.__init__(self) self.hosts=hosts self.auth_details=auth_detai...
| LoggersandHandlers can optionally use Filter instances to filter| records as desired. The base filterclassonly allows events which are| below a certain pointinthe logger hierarchy. For example, a filter| initialized with"A.B"will allow events logged by loggers"A.B",|"A.B.C","A.B.C...
logger=logging.getLogger(__name__)types={'image/jpeg','image/png'}defget_links(client_id):headers={'Authorization':'Client-ID {}'.format(client_id)}req=Request('https://api.imgur.com/3/gallery/random/random/',headers=headers,method='GET')withurlopen(req)asresp:data=json.loads(resp.re...
all the handlers of this logger to handle the record. """ sinfo = None if _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. ...
ioloop.run_in_executor(process_executor, cpu_blocking_task), return_exceptions=True, ) logger...
logger.info("Houston, we have a %s", "interesting problem", exc_info=1) """ if self.isEnabledFor(INFO): self._log(INFO, msg, args, **kwargs) 注释中反应了可以通过msg和不定参数args来进行日志的格式化。 真实的调用为:_log方法:
入门python由浅至深的进阶教程。一共分为10个阶段，内含基本语句，运算符，结构，匿名函数，库，异常...
import logging # Direct logging output to stdout. Without adding a handler, # no logging output is visible. handler = logging.StreamHandler(stream=sys.stdout) logger.addHandler(handler) 此示例注册的处理程序可将日志输出定向到 stdout。 可以使用 Python 文档中 logging.handlers 部分所述的其他类型的处...
Filefrom sanic import response @app.route('/file') async def handle_request(request): return await response.file('/srv/www/whatever.png')Streaming流媒体from sanic import response @app.route("/streaming") async def index(request): async def streaming_fn(response): response.write('foo') ...