Move files python script

import os
import shutil

source='c:/users/ayanU/Desktop'
destination='c:/users/ayanU/Desktop/text'

#change the directory
os.chdir(source)

#look for text files

files=os.listdir(source)
ext=".txt"
#make a loop to check all files and if .txt move to destination

for file in files:
	if ext in file:
		shutil.move(file,destination)