check palindrome in a file

import os


def check_palindrome(file, chunk_size=1024 ** 1 * 512):
    size = os.path.getsize(file)
    left_position = 0
    right_position = size - chunk_size
    with open(file) as fd:
        while not left_position >= right_position:
            fd.seek(left_position)
            left_chunk = fd.read(chunk_size)
            fd.seek(right_position)
            right_chunk = fd.read(chunk_size)[::-1]
            if left_chunk != right_chunk:
                return False
            left_position += chunk_size
            right_position -= chunk_size
    return True