pich4 code X_video_cockatoo.ipynb gives error on MacOS

[ralphrmartin]

On running this notebook on MacOS, after running the lines

n_channels = 3
n_frames = meta['nframes']
video = torch.empty(n_channels, n_frames, *meta['size'])

video.shape

I get the result

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
Cell In[3], line 3
      1 n_channels = 3
      2 n_frames = meta['nframes']
----> 3 video = torch.empty(n_channels, n_frames, *meta['size'])
      5 video.shape

TypeError: empty(): argument 'size' failed to unpack the object at pos 2 with error "type must be tuple of ints,but got float"