why download fail?

[pikeyang]

python tools/audioset2.py lists/audioset1.csv ../pfann_dataset/audioset
python tools/audioset2.py lists/audioset2.csv ../pfann_dataset/audioset
python tools/audioset2.py lists/audioset3.csv ../pfann_dataset/audioset

download -4N3GjgnIQ0 from 260 to 270

failed to download ;-(
stop for a moment~~~
download -5lI0Wt-pNE from 250 to 260
failed to download ;-(
stop for a moment~~~
download -ADTZNx531s from 340 to 350
failed to download ;-(
stop for a moment~~~
download -D1uGn8bvIA from 40 to 50
failed to download ;-(
stop for a moment~~~
download -DZN4RxMD3s from 140 to 150
failed to download ;-(
stop for a moment~~~
download -DrChjJRNIk from 80 to 90
failed to download ;-(
stop for a moment~~~
download -EveIKsp3nE from 270 to 280

[stdio2016]

AudioSet is video data from YouTube, which is blocked in China. If you are in China, please check for VPN settings.
Also please install youtube-dl via pip to get latest update.

[pikeyang]

AudioSet is video data from YouTube, which is blocked in China. If you are in China, please check for VPN settings. Also please install youtube-dl via pip to get latest update.

Thanks a lot, I have solved it!