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问如何在两个日志之间添加新行或分隔符
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Stack Overflow用户

提问于 2020-03-11 17:53:46

回答 1查看 409关注 0票数 4

下面的代码用于日志记录

app = flask.Flask(__name__)

if app.debug is not True:
    import logging
    from logging.handlers import RotatingFileHandler
    file_handler = RotatingFileHandler('error.log', maxBytes=1024 * 1024 * 100, backupCount=20)
    file_handler.setLevel(logging.ERROR)
    formatter = logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s")
    file_handler.setFormatter(formatter)

    app.logger.addHandler(file_handler)

如何在每次创建新日志后添加分隔符(新行或一组连字符)？

在评论中的建议之后：

    formatter = logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s \n")

我得到的是：

2020-03-11 15:36:31,289 - testapp - ERROR - Exception on /test/3456789876543333334567-letter-words [GET]   
**newline added here**
Traceback (most recent call last):
  File "C:\Users\DELL\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 2446, in wsgi_app
    response = self.full_dispatch_request()
  File "C:\Users\DELL\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 1951, in full_dispatch_request
    rv = self.handle_user_exception(e)
2020-03-11 15:36:31,289 - testapp - ERROR - Exception on /test/3456789876543333334567-letter-words [GET]   
**newline added here**
Traceback (most recent call last):
  File "C:\Users\DELL\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 2446, in wsgi_app
    response = self.full_dispatch_request()
  File "C:\Users\DELL\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 1951, in full_dispatch_request
    rv = self.handle_user_exception(e)

但我想要的是：

2020-03-11 15:36:31,289 - testapp - ERROR - Exception on /test/3456789876543333334567-letter-words [GET]    
Traceback (most recent call last):
  File "C:\Users\DELL\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 2446, in wsgi_app
    response = self.full_dispatch_request()
  File "C:\Users\DELL\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 1951, in full_dispatch_request
    rv = self.handle_user_exception(e)
**newline to be added here**
2020-03-11 15:36:31,289 - testapp - ERROR - Exception on /test/3456789876543333334567-letter-words [GET]   
Traceback (most recent call last):
  File "C:\Users\DELL\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 2446, in wsgi_app
    response = self.full_dispatch_request()
  File "C:\Users\DELL\AppData\Local\Programs\Python\Python37\lib\site-packages\flask\app.py", line 1951, in full_dispatch_request
    rv = self.handle_user_exception(e)

python-3.x

flask

回答 1

Stack Overflow用户

回答已采纳

发布于 2020-03-11 19:15:21

替换此行：

formatter = logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s")

有了这个：

formatter = logging.Formatter("\n%(asctime)s - %(name)s - %(levelname)s - %(message)s\n")

票数 3

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/60633260

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