python将文件夹里所有的txt文件内容写入excel

# coding=utf-8
import os
import xlwt
# import xlrd
file_path = 'D:\\data\\test.xls'#要写入的文件
f = xlwt.Workbook(encoding='utf-8', style_compression=0)
sheet = f.add_sheet('sheet1')
pathDir = os.listdir("D:\\data\\sub")#txt文件放置在sub文件夹中，用来获取sub文件夹内所有文件目录
i = 0
for s in pathDir:
newDir = os.path.join("D:\\data\\sub", s)#把获取的文件路径整合
f1 = open(newDir, 'r')
lines = f1.readlines()
for line in lines:
sheet.write(i, 0, line)
i = i+1
print(i)
f.save(file_path)