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simple2025
0D

Python logging FileHandler 写 emoji 报错

  •  
  •   simple2025 2021 年 2 月 28 日 2816 次点击
    这是一个创建于 1880 天前的主题,其中的信息可能已经有所发展或是发生改变。

    代码

    import logging from logging import config LOGGING_COnFIG= { "version": 1, "formatters": { "default": { 'format': '%(asctime)19.19s %(levelname)1.1s %(message)s', }, "file": { 'format': '%(asctime)19.19s %(filename)s %(lineno)s %(levelname)1.1s %(message)s', }, "plain": { "format": "%(message)s", }, }, "handlers": { "console": { "class": "logging.StreamHandler", "level": "INFO", "formatter": "default", }, "file": { "class": "logging.FileHandler", "level": 20, "filename": "./log.txt", "formatter": "default", }, "rotate_file": { "class": "logging.handlers.RotatingFileHandler", "level": 20, "filename": "./log.txt", "formatter": "default", "maxBytes": 52428800, "backupCount": 7, } }, "loggers": { "tmp": { "handlers": ["console", "rotate_file"], "level": "INFO", "propagate": False, }, }, "disable_existing_loggers": True, } config.dictConfig(LOGGING_CONFIG) logger = logging.getLogger("tmp") logger.info("吃\ud83d\udc3a") 

    报错信息

    2021-02-28 22:35:55 I 吃\ud83d\udc3a --- Logging error --- Traceback (most recent call last): File "/home/vagrant/.pyenv/versions/3.6.9/lib/python3.6/logging/__init__.py", line 996, in emit stream.write(msg) UnicodeEncodeError: 'utf-8' codec can't encode characters in position 23-24: surrogates not allowed Call stack: File "/home/vagrant/code/xxx/tmp.py", line 55, in <module> logger.info("吃\ud83d\udc3a") Message: '吃\ud83d\udc3a' Arguments: () 

    这种问题怎么 fix 呀?

    8 条回复    2021-03-01 16:02:58 +08:00
    Sunyanzi
        1
    Sunyanzi  
       2021 年 2 月 28 日   1
    这难道不是只要 encode 一下就好了吗 ... 最后一行改成下面样子 ...

    logger.info("吃\ud83d\udc3a".encode('unicode-escape'))
    lxy42
        2
    lxy42  
       2021 年 2 月 28 日   1
    ```
    In [38]: print('\U0001f43a')

    In [39]: hex(ord(''))
    Out[39]: '0x1f43a'
    ```
    simple2025
        3
    simple2025  
    OP
       2021 年 3 月 1 日
    @Sunyanzi 虽然你这个样子不会报错,但是日志变成这个样子了

    ```
    2021-03-01 00:05:07 I b'\\u5403\\ud83d\\udc3a'
    ```

    日志都不能肉眼识别了,那么日志的意义就没有了呀
    simple2025
        4
    simple2025  
    OP
       2021 年 3 月 1 日
    @lxy42 只是 streamHandler 也不会报错的,关键是 FileHandler 导致报错了
    Sunyanzi
        5
    Sunyanzi  
       2021 年 3 月 1 日   1
    @chenqh 只是需要保中文的肉眼识别 ..? 那换个写法用 rper 就好 ...

    参数改成 ("%r" % "吃\ud83d\udc3a") ...
    Sylv
        6
    Sylv  
       2021 年 3 月 1 日 via iPhone   1
    \ud83d\udc3a 是 的 UTF-16 编码,然后再用默认的 UTF-8 编码 encode 肯定就出错了。
    Sylv
        7
    Sylv  
       2021 年 3 月 1 日 via iPhone
    joApioVVx4M4X6Rf
        8
    joApioVVx4M4X6Rf  
       2021 年 3 月 1 日
    @Sylv
    @Sunyanzi 好牛啊,我学到了
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