小编Ala*_*n.L的帖子

执行以下行时

!pip install kaggle
!kaggle competitions download -c dogs-vs-cats -p /content/

我收到以下错误消息,

Traceback (most recent call last):
File "/usr/local/bin/kaggle", line 7, in <module>
from kaggle.cli import main
File "/usr/local/lib/python3.6/dist-packages/kaggle/__init__.py", line 23, in <module>
api.authenticate()
File "/usr/local/lib/python3.6/dist-packages/kaggle/api/kaggle_api_extended.py", line 109, in authenticate
self._load_config(config_data)
File "/usr/local/lib/python3.6/dist-packages/kaggle/api/kaggle_api_extended.py", line 151, in _load_config
raise ValueError('Error: Missing %s in configuration.' % item)
ValueError: Error: Missing username in configuration.

我不知道刚发生了什么......同样的线路之前工作得很好.这是我第一次发现这个问题.

我尝试使用以下代码在 Google Colab 上播放 YouTube 视频，

!pip install pytube==9.1.0
from pytube import YouTube
yt = YouTube('https://www.youtube.com/watch?v=-ncJV0tMAjE&t=72s')

yt 对象的标题是，

print(yt.title)
>> ??2 ??? ??????????????Riccati equation

然后，我导入了 cv2.

import cv2
import numpy as np
cap = cv2.VideoCapture('??2 ??? ??????????????Riccati equation.mp4')

while(cap.isOpened()):
    ret, frame = cap.read()

    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)

    cv2.imshow('frame',gray)
    if cv2.waitKey(1) & 0xFF == ord('q'):
        break

cap.release()
cv2.destroyAllWindows()

但是，我总是收到一条错误消息，

Runtime died. Automatically restarting.

我该怎么办？