如何在没有Git的情况下将Git SHA1分配给文件？

import hashlib

def calculate_sha1(file_path):
    sha1_hash = hashlib.sha1()
    with open(file_path, "rb") as file:
        while True:
            data = file.read(65536)
            if not data:
                break
            sha1_hash.update(data)
    return sha1_hash.hexdigest()

file_path = "path/to/your/file"
sha1_hash = calculate_sha1(file_path)
print(f"SHA1 hash of {file_path} is {sha1_hash}")