鄭瀅洋
更新時間：2019/5/15 下午 10:23:15

您好，我照9-3頁的程式碼輸入，得到以下的結果:
runfile('C:/Users/kotori/.spyder-py3/temp.py', wdir='C:/Users/kotori/.spyder-py3')
Traceback (most recent call last):

  File "<ipython-input-1-ad4e140df4be>", line 1, in <module>
    runfile('C:/Users/kotori/.spyder-py3/temp.py', wdir='C:/Users/kotori/.spyder-py3')

  File "C:\Users\kotori\Anaconda3\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 786, in runfile
    execfile(filename, namespace)

  File "C:\Users\kotori\Anaconda3\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 110, in execfile
    exec(compile(f.read(), filename, 'exec'), namespace)

  File "C:/Users/kotori/.spyder-py3/temp.py", line 5, in <module>
    yt.url = "https://www.youtube.com/watch?v=CbzQJB-T41I"

  File "C:\Users\kotori\Anaconda3\lib\site-packages\pytube\api.py", line 117, in url
    self.from_url(url)

  File "C:\Users\kotori\Anaconda3\lib\site-packages\pytube\api.py", line 227, in from_url
    signature = self._get_cipher(stream_map['s'][i], js_url)

  File "C:\Users\kotori\Anaconda3\lib\site-packages\pytube\api.py", line 417, in _get_cipher
    'issue on GitHub: {0}'.format(e))

CipherError: Couldn't cipher the signature. Maybe YouTube has changed the cipher algorithm. Notify this issue on GitHub: local variable 'func' referenced before assignment


有的影片可以正常下載，但是有的就會出現這個錯誤，請問這是什麼原因?

文淵閣工作室
更新時間：2019/5/16 上午 07:19:47

1. 您有依 http://blog.e-happy.com.tw/pytube%E7%84%A1%E6%B3%95%E4%B8%8B%E8%BC%89%E5%BD%B1%E7%89%87%E4%BF%AE%E6%AD%A320190501/ 修改過嗎？
2. 有些 youtube 影片有處理過，pytube 不保證每個都能下載
3. 我們未見過此錯誤訊息，您產生此訊息的 YOUTUBE 網址 PO 上來，我們測試看看。