Python Flask记录到多个文件 [英] Python Flask logging to multiple files

问题描述

我有一个flask应用程序，它从2个不同的文件调用2个函数.我已将日志记录设置为2个不同的文件.但是，日志记录似乎总是会附加到一个文件中(无论哪个端点先被命中)

I have a flask application, which calls 2 functions from 2 different files. I've setup logging to 2 different files. However, the logging always seems to append to one file (whatever end point is hit first)

这是文件的结构-

• app.py

from file1 import fun1
from file2 import fun2
 
@app.route("/end_point1")
def data_1:
    return fun1()
     
@app.route("/end_point2")
def data_2:
    return fun2()

• file1.py

import logging

def fun1:
    logging.basicConfig(filename = "file1.log")
    logging.info("Logging function 1 details to to file1")
    return foo

• file2.py

def fun2:
    logging.basicConfig(filename = "file2.log")
    logging.info("Logging function 2 details to to file2")
    return bar

当我运行单个 python 文件时，这个记录很好(单独) - file1.py/file2.py但是，当我运行API时，日志仅追加到一个文件中.

This logs fine (separately) when I run the individual python files - file1.py / file2.py But the logs append to just one file when I run the API.

我在记录日志时出了什么问题?我该如何解决?

What am I doing wrong with the logging? How can I fix it?

推荐答案

将此添加到logger_setup.py

Add this to logger_setup.py

import logging
from pathlib import Path
formatter = logging.Formatter('%(asctime)s - %(levelname)s - [%(filename)s:%(lineno)d] - %(message)s')


def setup_logger( name, log_file, level=logging.DEBUG): 

    my_file = Path(log_file)
    # print("check the if condition for the file")
    # print(my_file.is_file())

    if my_file.is_file():
        #print(logging.getLogger(name).hasHandlers())
        # if logging.getLogger(name).hasHandlers():
        if len(logging.getLogger(name).handlers)>0:
            return logging.getLogger(name)
        else:
            handler = logging.FileHandler(log_file, mode='a')        
            handler.setFormatter(formatter)
            logger = logging.getLogger(name)
            logger.setLevel(level)
            logger.addHandler(handler)
            logger.propagate = False
            return logger
    else:
        handler = logging.FileHandler(log_file, mode='a')        
        handler.setFormatter(formatter)

        logger = logging.getLogger(name)
        logger.setLevel(level)
        logger.addHandler(handler)
        logger.propagate = False
        return logger

在文件1和2中，您可以使用类似的内容

Inside the file1 and 2 you can use something like this

import logging
import logger_setup

def fun1():
    log_location = 'logs'
    logger = logger_setup.setup_logger(__name__,log_location+__name__+'.log')
    logger.info("Logging function 1 details to to file1")
    return "1"

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