identical file check

import hashlib 
from difflib import SequenceMatcher 


def hash_file(fileName1, fileName2): 

	# Use hashlib to store the hash of a file 
	h1 = hashlib.sha1() 
	h2 = hashlib.sha1() 

	with open(fileName1, "rb") as file: 

		# Use file.read() to read the size of file 
		# and read the file in small chunks 
		# because we cannot read the large files. 
		chunk = 0
		while chunk != b'': 
			chunk = file.read(1024) 
			h1.update(chunk) 
			
	with open(fileName2, "rb") as file: 

		# Use file.read() to read the size of file a 
		# and read the file in small chunks 
		# because we cannot read the large files. 
		chunk = 0
		while chunk != b'': 
			chunk = file.read(1024) 
			h2.update(chunk) 

		# hexdigest() is of 160 bits 
		return h1.hexdigest(), h2.hexdigest() 


msg1, msg2 = hash_file("pd1.pdf ", "pd1.pdf") 

if(msg1 != msg2): 
	print("These files are not identical") 
else: 
	print("These files are identical")