how to know the resolution of an image in python code example

Example 1: how to get just the filename in python

import os
>>> base=os.path.basename('/root/dir/sub/file.ext')
>>> base
'file.ext'
>>> os.path.splitext(base)
('file', '.ext')
>>> os.path.splitext(base)[0]
'file'

Example 2: find the size of file in linux

ls -l filename   #Displays Size of the specified file
ls -l *          #Displays Size of All the files in the current directory
ls -al *         #Displays Size of All the files including hidden files in the current directory
ls -al dir/      #Displays Size of All the files including hidden files in the 'dir' directory

Example 3: unity change the source image or image

public Image test;
public Sprite example;

void Start()
{
 test.sprite = example; //change the source image of the image "test" to the sprite "example" 
}