from typing import BinaryIO
import hashlib

# Can replace algorithm with hashlib.sha1, hashlib.sha256, etc.
def hash_file(f: BinaryIO, blocksize: int=8192, algorithm=hashlib.md5):
    file_hash = algorithm()
    for chunk in iter(lambda: f.read(blocksize), b""):
      file_hash.update(chunk)
    return file_hash.hexdigest()

with open(filename, 'rb') as f:
    print(hash_file(f))