can't get a file size in python

Question

I am a python newbie and learning from "automate boring stuff" book, so it says in the book the I can use os.path.getsize(path) to get a file size but when I run this code it gives an error, can you please explain why I am getting this?

import os

mypath = 'C:\\Users\\C2D\\Desktop\\Embedded system\\u1.PNG'
os.chdir(mypath)
print(os.path.getsize(mypath))

error is : NotADirectoryError: [WinError 267] The directory name is invalid: 'C:\Users\C2D\Desktop\Embedded system\u1.PNG'

I am working on windows 8.1 and using python3.8 on pycharm

Answer 1

It is failing because of the line os.chdir(mypath). You don't need to chdir().

Assuming the path is correct and the file exists, it should work (print the file size) if you remove the os.chdir() statement.