Removed dislike count from backend_youtube_dl

[Cupcakus]

Most videos no longer have a dislike count on YT, this was cuasing errors and crashes.

[yam-1111]

PLS PUSH THIS!!

[michael-je]

If anyone needs a working version right now then you can check out this modification I made on one of my own projects.
I just copied some of the source code and created a pafy_fixed version by changing only what was necessary. It then becomes a drop-in replacement for pafy.

[mohamed-challal]

If you need a temporary fix
run pip install -e git+git://github.com/mohamed-challal/pafy.git@develop#egg=pafy
or simply add -e git+git://github.com/mohamed-challal/pafy.git@develop#egg=pafy to your requirements.txt

[YASSlNE]

please fix this asap

[FarisHijazi]

QUICK FIX

You could just install pafy from this pull request (until the request is accepted)

pip uninstall -y pafy
pip install git+https://github.com/Cupcakus/pafy

[alec-jensen]

this problem is breaking my code, this needs to be added as soon as possible

[mthfrr]

looks good

[Balakishan77]

As dislike_count is not coming in the YouTube data, this commit will resolve the issue. Below are the current keys we are getting from YouTube feed.

['id', 'title', 'formats', 'thumbnails', 'description', 'upload_date', 'uploader', 'uploader_id', 'uploader_url', 'channel_id', 'channel_url', 'duration', 'view_count', 'average_rating', 'age_limit', 'webpage_url', 'categories', 'tags', 'is_live', 'subtitles', 'like_count', 'channel', 'track', 'artist', 'album', 'creator', 'alt_title', 'extractor', 'webpage_url_basename', 'extractor_key', 'playlist', 'playlist_index', 'thumbnail', 'display_id', 'requested_subtitles', 'requested_formats', 'format', 'format_id', 'width', 'height', 'resolution', 'fps', 'vcodec', 'vbr', 'stretched_ratio', 'acodec', 'abr', 'ext']

[FurigaJulien]

Ok for a realease !

[seanreynoldscs]

Looks good to me

[ghost]

LGTM