python 3.6 *记录模块错误* UnicodeEncodeError:"charmap"编解码器无法编码字符

问题描述

在Windows 10上，日志记录模块发送此错误(使用scrapy)

On Windows 10 the logging module send this error (using scrapy)

# --- Logging error ---
...
# UnicodeEncodeError: 'charmap' codec can't encode characters in position 175-176: character maps to <undefined>

根据 tuto (不需要).

According to the tuto it isnt needed.

configure_logging(install_root_handler=False) #override default log settings
logging.basicConfig(
    filename='logfile.log',
    format='%(levelname)s: %(message)s',
    datefmt='%m-%d %H:%M',
    level=logging.INFO #CRITICAL ERROR WARNING  INFO    DEBUG    NOTSET
)

我发现了有关该主题的许多问题，但主要是关于python 2的问题(或与日志记录模块无关).而且日志记录教程甚至不谈论utf-8. (请注意，我可以毫无问题地打印UTF8字符.问题仅在日志记录模块中出现)

I found many questions on the topics, but mostly on python 2 (or not related to the logging module). And the logging tutorial don't even talk about utf-8. (Notice that I can print UTF8 characters without any problem. The problem only occur with the logging module)

推荐答案

我没有使用Scrapy，但是在香草Python 3.6日志记录中遇到了同样的问题，即无法通过到一个文件(控制台正常工作).

I'm not using Scrapy but I ran into the same issue with vanilla Python 3.6 logging of not being able to write UTF-8 characters via logging to a file (console worked just fine).

基于此评论我在FileHandler初始化.我正在通过INI文件配置日志记录，如下所示:

Based on this comment I added 'utf-8' to my FileHandler initialization. I'm configuring logging via an INI file so it looks like this:

[handler_file]
class = FileHandler
args = (r'log.txt', 'a', 'utf-8')
level = NOTSET
formatter = generic

要使用logging.basicConfig()，我认为您应该能够执行以下操作:

To use logging.basicConfig() I think that you should be able to do the following:

configure_logging(install_root_handler=False) #override default log settings
logging.basicConfig(
    handlers=[logging.FileHandler('logfile.log', 'w', 'utf-8')],
    format='%(levelname)s: %(message)s',
    datefmt='%m-%d %H:%M',
    level=logging.INFO #CRITICAL ERROR WARNING  INFO    DEBUG    NOTSET
)

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