yahoo.py extractor should support videos outside the United States

[yan12125]

I'd like to download the following video clip:
"https://tw.screen.yahoo.com/taipei-opinion-poll/%E9%81%B8%E6%83%85%E7%AB%99%E5%A0%B1-%E8%A1%97%E9%A0%AD%E6%B0%91%E8%AA%BF-%E5%8F%B0%E5%8C%97%E5%B8%82%E7%AF%87-102823042.html"
Short link: http://ppt.cc/3iGP

youtube-dl reports that the site is not supported. However, if I apply the following modifications to youtube_dl/extractor/yahoo.py, the video clip is downloaded fluently.

1. Change the _VALID_URL regexp
   _VALID_URL = r'(?P<url>https?://(?:screen|movies)\.yahoo\.com/.*?-(?P<id>[0-9]+)(?:-[a-z]+)?\.html)'
   to
   _VALID_URL = r'(?P<url>https?://.*(?:screen|movies)\.yahoo\.com/.*?-(?P<id>[0-9]+)(?:-[a-z]+)?\.html)'
   It's at line 18 of version 2014.10.05.2
2. Change the query region from US to TW

query = ('SELECT * FROM yahoo.media.video.streams WHERE id="%s"'
         ' AND plrs="86Gj0vCaSzV_Iuf6hNylf2" AND region="US"'
         ' AND protocol="http"' % long_id)

to

query = ('SELECT * FROM yahoo.media.video.streams WHERE id="%s"'
         ' AND plrs="86Gj0vCaSzV_Iuf6hNylf2" AND region="TW"'
         ' AND protocol="http"' % long_id)

They're in line 78~80 of version 2014.10.05.2

If part 2 is not done, YQL returns a "restricted" error.

This is just a quick fix. Further work includes finding a mapping from the URL to the region parameter in YQL.
Issue #2470 is similar to this one, but I think they're different.

[dstftw]

Thanks, fixed.

[phihag]

Fixed in youtube-dl 2015.10.12. Type youtube-dl -U to update.

[yan12125]

youtube-dl is updated in Archlinux and it works perfectly. Thanks a lot for the excellent work!