合并多个text文件内容

想要将某文件夹下面的所有.txt文件内容放到一个.txt中，使用txt的写入写出就可以了，代码如下：

import os
import sys

# 获取当前路径
jupyter_path = os.getcwd() 

# 获取txt文件夹路径
in_path = os.path.join(jupyter_path, "txt")
out_path = jupyter_path

with open(os.path.join(jupyter_path, "all.txt"), "w") as f:
    # 获取txt文件夹下的所有文件
    for file in os.listdir(in_path):
        with open(os.path.join(in_path, file), "r") as tmp_f:
            for line in tmp_f.readlines():
                f.write(line)