Pythonはフォルダ内のすべてのファイルの名前を抽出します

import os
import os.path
rootdir = "E:\Dissertation\  \    "

file_object = open('train_list.txt','w')

for parent,dirnames,filenames in os.walk(rootdir):
    for filename in filenames:
        print(filename)
        file_object.write(filename+ '
'+'
')
file_object.close()