python有自带的logging模块, 按照文档配置使用就可以了 https://docs.python.org/zh-cn/3/howto/logging.html

首先导入sys模块，然后利用sys.stdout将print行导向到你定义的日志文件中，例如：

import sys

make a copy of original stdout route

stdout_backup = sys.stdout

define the log file that receives your log info

log_file = open("message.log", "w")

redirect print output to log file

sys.stdout = log_file print "Now all print info will be written to message.log"

any command line that you will execute

... log_file.close()

restore the output to initial pattern

sys.stdout = stdout_backup print "Now this will be presented on screen"

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