Python实现print输出至日志文件

Python实现print输出至日志文件

import sys
import os
import time

time_str = time.strftime('%Y%m%d%H%M%S')
log_file = "Output" + time_str
class Logger(object):
    def __init__(self, filename=log_file):
        self.terminal = sys.stdout
        self.log = open(filename, "a")

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

    def flush(self):
        pass

sys.stdout = Logger(log_file)
print(os.path.dirname(__file__))
print('------------------')
var1='hello'
var2='world'
print('var1:%s\nvar2: %s\n'%(var1,var2))
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