为什么INFO记录在DEBUG日志中 [英] Why does INFO get logged in DEBUG logs

问题描述

我正在使用yaml为我的Python应用程序配置日志记录.

I am using yaml to config logging for my Python application.

version: 1
disable_existing_loggers: False

formatters:
    standard:
        format: "%(asctime)s - %(name)s - %(levelname)s - %(message)s"

handlers:
    console:
        class: logging.StreamHandler
        level: DEBUG
        formatter: standard
        stream: ext://sys.stdout

    info_file_handler:
        class: logging.handlers.RotatingFileHandler
        level: INFO
        formatter: standard
        filename: info.log
        maxBytes: 10485760 # 10MB
        backupCount: 20
        encoding: utf8

    error_file_handler:
        class: logging.handlers.RotatingFileHandler
        level: ERROR
        formatter: standard
        filename: errors.log
        maxBytes: 10485760 # 10MB
        backupCount: 20
        encoding: utf8

    debug_file_handler:
        class: logging.handlers.RotatingFileHandler
        level: DEBUG
        formatter: standard
        filename: debug.log
        maxBytes: 10485760 # 10MB
        backupCount: 20
        encoding: utf8

loggers:
        db_ops:
        level: DEBUG
        handlers: [info_file_handler, error_file_handler, debug_file_handler]
        propagate: true

在模块 db_ops 中，我同时使用 logger.info 和 logger.debug 进行不同级别的日志记录.当我运行该应用程序时，虽然 INFO 确实输出到info.log，但 INFO 和 DEBUG 消息均输出到debug.log.

In module db_ops, I use both logger.info and logger.debug for different levels of logging. When I run the app, while INFO did get output to info.log, both INFO and DEBUG messages are output to debug.log.

根据级别将日志分隔到不同文件的正确方法是什么?

What is the right way to separate the log to different files based on the level?

推荐答案

python记录器和处理程序的级别是阈值.如果将级别指定为DEBUG，则表示将记录等于或大于DEBUG 的任何值.

The levels of python loggers and handlers are thresholds. If you specify your level as DEBUG, it means that anything equal or above DEBUG will be logged.

如果只想进行DEBUG日志记录，则必须另外分配一个过滤器，该过滤器将过滤除DEBUG消息以外的任何内容.

If you want to have a DEBUG logging only, you'll have to additionally assign a filter that will filter anything but DEBUG message.

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