`logging.basicConfig(level=logging.INFO)` 应该只接受 INFO 级别的日志记录吗？

Question

这是来自源代码的示例代码：https://docs.python.org/3/howto/logging.html

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import logging\nlogging.basicConfig(filename='example.log', encoding='utf-8', level=logging.DEBUG)\nlogging.debug('This message should go to the log file')\nlogging.info('So should this')\nlogging.warning('And this, too')\nlogging.error('And non-ASCII stuff, too, like \xc3\x98resund and Malm\xc3\xb6')\n

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我认为level=logging.DEBUG下面的代码

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logging.basicConfig(filename='example.log', encoding='utf-8', level=logging.DEBUG)\n

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logging只接受logging.DEBUG。那为什么info，，warning工作error

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Answer 1

python的日志记录级别按以下顺序排列：

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1. 批判的
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2. 错误
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3. 警告
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4. 信息
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5. 调试
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6. 没有设置
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如果您在配置时将根日志记录器级别设置为logging.DEBUG，它将写入高于该级别的所有日志。

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例子：

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import logging\nlogging.basicConfig(filename=\'example.log\', encoding=\'utf-8\', level=logging.DEBUG)\nlogging.debug(\'This message should go to the log file\')\nlogging.info(\'So should this\')\nlogging.warning(\'And this, too\')\nlogging.error(\'And non-ASCII stuff, too, like \xc3\x98resund and Malm\xc3\xb6\')\n

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输出：

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DEBUG:root:This message should go to the log file\nINFO:root:So should this\nWARNING:root:And this, too\nERROR:root:And non-ASCII stuff, too, like \xc3\x98resund and Malm\xc3\xb6\n

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如果您在配置时将根记录器级别设置为logging.ERROR，它将仅写入 CRITICAL 日志和 ERROR 日志。

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例子：

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DEBUG:root:This message should go to the log file\nINFO:root:So should this\nWARNING:root:And this, too\nERROR:root:And non-ASCII stuff, too, like \xc3\x98resund and Malm\xc3\xb6\n

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输出：

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ERROR:root:And non-ASCII stuff, too, like \xc3\x98resund and Malm\xc3\xb6\nCRITICAL:root:And non-ASCII stuff, too, like \xc3\x98resund and Malm\xc3\xb6 2\n

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