Keep getting Not a directory error

#1

But when i lid=sted the directectories the output showes images.1

NotADirectoryError Traceback (most recent call last)
in ()
----> 1 os.listdir(’./images.1’)

Full code

!wget “https://github.com/coding-blocks-archives/machine-learning-online-2018/tree/master/Datasets/Images/images”

!ls

import os, shutil
os.listdir()

os.listdir(“images”)

NotADirectoryError: [Errno 20] Not a directory: ‘./images.1’