utilities.py 文件源码

def sha1_from_file_object(file_object: typing.IO[bytes]):
    block_size = 65536
    hasher = hashlib.sha1()
    buf = file_object.read(block_size)
    while len(buf) > 0:
        hasher.update(buf)
        buf = file_object.read(block_size)
    file_object.close()
    return hasher.hexdigest()