yaml文件配置logger

yaml

今天用yaml文件写了一下logging的配置，文件如下：

version: 1
disable_existing_loggers: False
formatters:
    simple:
        format: "%(asctime)s - %(filename)s - %(levelname)s - %(message)s"
handlers:
    console:
        class: logging.StreamHandler
        level: ERROR
        formatter: simple
        stream: ext://sys.stdout

    info_file_handler:
        class: logging.handlers.RotatingFileHandler
        level: INFO
        formatter: simple
        filename: ./mylog/info.log
        maxBytes: 10485760
        backupCount: 20
        encoding: utf8

    error_file_handler:
        class: logging.handlers.RotatingFileHandler
        level: ERROR
        formatter: simple
        filename: errors.log
        maxBytes: 10485760
        backupCount: 20
        encoding: utf8

loggers:
    my_module:
        level: ERROR
        handlers: [console]
        propagate: no

root:
    level: INFO
    handlers: [console, info_file_handler]

只是做个demo，所以写的比较粗略，然后中间就是包含了formatter，handlers，并没有使用filters，最终的效果是ERROR级别的信息将会在命令台进行打印并写入日志文件当中。

try_log.py

# -*- coding: utf-8 -*-

import os
import yaml
import logging
from logging import config as logger_config

config_file = os.path.join(os.path.dirname(__file__), "config.yaml")

if os.path.exists("mylog"):
    pass
else:
    os.mkdir("mylog")

with open(config_file, "rt") as stream:
    config = yaml.unsafe_load(stream.read())

logger_config.dictConfig(config)
logger = logging.getLogger()

if __name__ == "__main__":
    logger.error("This is a test error message for my first logger.")

运行这个命令就可以看到相应的结果了。