如何使用python将csv转换为txt文件？

import csv

def csv_to_txt(csv_file, txt_file):
    with open(csv_file, 'r') as file:
        csv_reader = csv.reader(file)
        with open(txt_file, 'w') as output:
            for row in csv_reader:
                output.write('\t'.join(row) + '\n')

csv_to_txt('input.csv', 'output.txt')