python - 覆盖默认打印方法以与 python 的日志记录模块一起使用

Question

我正在尝试print用我自己的版本覆盖全局方法。我尝试使用 python 的全局字典覆盖该方法。但它会引发错误。

 import logging

format = '%(asctime)s %(message)s %(name)s - %(levelname)s | %(service)s - %(m)s'
formatter = logging.Formatter(format)

logging.basicConfig(format=format)

file_handler = logging.FileHandler("app.log")



logger = logging.getLogger('root-logger')
logger.addHandler(file_handler)
file_handler.setFormatter(formatter)

def p():
        logger.warning("hello")

globals()['print'] = p



print()

我得到的错误是：

    --- Logging error ---
Traceback (most recent call last):
File "/Users/pc/anaconda3/envs/spider/lib/python3.7/logging/__init__.py", line 1025, in emit
    msg = self.format(record)
File "/Users/pc/anaconda3/envs/spider/lib/python3.7/logging/__init__.py", line 869, in format
    return fmt.format(record)
File "/Users/pc/anaconda3/envs/spider/lib/python3.7/logging/__init__.py", line 611, in format
    s = self.formatMessage(record)
File "/Users/pc/anaconda3/envs/spider/lib/python3.7/logging/__init__.py", line 580, in formatMessage
    return self._style.format(record)
File "/Users/pc/anaconda3/envs/spider/lib/python3.7/logging/__init__.py", line 422, in format
    return self._fmt % record.__dict__
KeyError: 'service'
Call stack:
File "test.py", line 24, in <module>
    print()
File "test.py", line 18, in p
    logger.warning("hello")
Message: 'hello'
Arguments: ()
--- Logging error ---
Traceback (most recent call last):
File "/Users/pc/anaconda3/envs/spider/lib/python3.7/logging/__init__.py", line 1025, in emit
    msg = self.format(record)
File "/Users/pc/anaconda3/envs/spider/lib/python3.7/logging/__init__.py", line 869, in format
    return fmt.format(record)
File "/Users/pc/anaconda3/envs/spider/lib/python3.7/logging/__init__.py", line 611, in format
    s = self.formatMessage(record)
File "/Users/pc/anaconda3/envs/spider/lib/python3.7/logging/__init__.py", line 580, in formatMessage
    return self._style.format(record)
File "/Users/pc/anaconda3/envs/spider/lib/python3.7/logging/__init__.py", line 422, in format
    return self._fmt % record.__dict__
KeyError: 'service'
Call stack:
File "test.py", line 24, in <module>
    print()
File "test.py", line 18, in p
    logger.warning("hello")
Message: 'hello'
Arguments: ()

如何覆盖默认打印方法，以便我可以在整个应用程序中使用它与 python 的日志记录模块同步？

标签： pythonlogging