python中同时输出到终端和日志log文件

import sysclass Logger(object):def __init__(self, file_name = 'temp.log', stream = sys.stdout) -> None:self.terminal = streamself.log = open(f'log/{filename}', "a")def write(self, message):self.ter

syncdoodle

1859人浏览 · 2022-04-19 12:01:25

syncdoodle · 2022-04-19 12:01:25 发布

import sys

class Logger(object):
    def __init__(self, file_name = 'temp.log', stream = sys.stdout) -> None:
        self.terminal = stream
        self.log = open(f'log/{file_name}', "a")

    def write(self, message):
        self.terminal.write(message)
        self.log.write(message)

    def flush(self):
        pass

# open log handler before print
filename = "log"
log_file_name = f"{filename}.log"
sys.stdout = Logger(str(log_file_name))
sys.stderr = Logger(str(log_file_name))