文件名称：给内库增加日志功能-python cookbook(第3版)高清中文完整版
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更新时间：2024-06-29 23:06:48
python cookbook 第3版 高清 中文完整版
13.12 给内库增加日志功能 问题 You would like to add a logging capability to a library, but don’t want it to interfere with programs that don’t use logging. 解决方案 For libraries that want to perform logging, you should create a dedicated logger object, and initially configure it as follows: # somelib.py import logging log = logging.getLogger(__name__) log.addHandler(logging.NullHandler()) # Example function (for testing) def func(): log.critical(‘A Critical Error!’) log.debug(‘A debug message’) With this configuration, no logging will occur by default. For example: >>> import somelib >>> somelib.func() >>>