python 读写文件

#!/usr/bin/env python
# -*- coding: utf-8 -*-


if __name__ == '__main__':
    logname = './new_file.txt'
    with open(logname,'w') as logfile:
        with open('./5.txt', 'r') as f:
            for line in f.readlines():
                logfile.write(line.strip()+'\n')