ValueError: Incorrect AES key length (39 bytes)

[Mitcheltong]

简单描述
下载单个视频出错

环境
Python: 3.11.1
浏览器: Edge
操作系统: Windows 10

日志

[■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ] 100%Traceback (most recent call last):4
  File "C:\Users\Mitchell\Desktop\111\qcourse_scripts-main\qcourse.py", line 171, in <module>
    main()
  File "C:\Users\Mitchell\Desktop\111\qcourse_scripts-main\qcourse.py", line 123, in main
    asyncio.run(parse_course_url_and_download(course_url))
  File "C:\Users\Mitchell\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.py", line 190, in run
    return runner.run(main)
           ^^^^^^^^^^^^^^^^
  File "C:\Users\Mitchell\AppData\Local\Programs\Python\Python311\Lib\asyncio\runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Mitchell\AppData\Local\Programs\Python\Python311\Lib\asyncio\base_events.py", line 653, in run_until_complete
    return future.result()
           ^^^^^^^^^^^^^^^
  File "C:\Users\Mitchell\Desktop\111\qcourse_scripts-main\qcourse.py", line 88, in parse_course_url_and_download
    await download_single(urls[0], urls[1], filename, path)
  File "C:\Users\Mitchell\Desktop\111\qcourse_scripts-main\downloader.py", line 150, in download_single
    decrypt_file(str(file) + '.ts', key)
  File "C:\Users\Mitchell\Desktop\111\qcourse_scripts-main\downloader.py", line 28, in decrypt_file
    dec = decrypt(ciphertext, key)
          ^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Mitchell\Desktop\111\qcourse_scripts-main\downloader.py", line 20, in decrypt
    cipher = AES.new(key, AES.MODE_CBC, iv)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Mitchell\Desktop\111\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\AES.py", line 228, in new
    return _create_cipher(sys.modules[__name__], key, mode, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Mitchell\Desktop\111\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\__init__.py", line 79, in _create_cipher
    return modes[mode](factory, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Mitchell\Desktop\111\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\_mode_cbc.py", line 274, in _create_cbc_cipher
    cipher_state = factory._create_base_cipher(kwargs)
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Mitchell\Desktop\111\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\AES.py", line 90, in _create_base_cipher
    raise ValueError("Incorrect AES key length (%d bytes)" % len(key))
ValueError: Incorrect AES key length (39 bytes)

Screenshots

[Kratos28]

同样问题.某些视频能下载，某些视频报错