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import re
from . common import InfoExtractor
class HowcastIE ( InfoExtractor ) :
_VALID_URL = r ' (?:https?://)?(?:www \ .)?howcast \ .com/videos/(?P<id> \ d+) '
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_TEST = {
u ' url ' : u ' http://www.howcast.com/videos/390161-How-to-Tie-a-Square-Knot-Properly ' ,
u ' file ' : u ' 390161.mp4 ' ,
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u ' md5 ' : u ' 8b743df908c42f60cf6496586c7f12c3 ' ,
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u ' info_dict ' : {
u " description " : u " The square knot, also known as the reef knot, is one of the oldest, most basic knots to tie, and can be used in many different ways. Here ' s the proper way to tie a square knot. " ,
u " title " : u " How to Tie a Square Knot Properly "
}
}
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def _real_extract ( self , url ) :
mobj = re . match ( self . _VALID_URL , url )
video_id = mobj . group ( ' id ' )
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webpage = self . _download_webpage ( url , video_id )
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self . report_extraction ( video_id )
video_url = self . _search_regex ( r ' \' ?file \' ?: " (http://mobile-media \ .howcast \ .com/[0-9]+ \ .mp4) ' ,
webpage , u ' video URL ' )
video_title = self . _html_search_regex ( r ' <meta content=(?: " ([^ " ]+) " | \' ([^ \' ]+) \' ) property= \' og:title \' ' ,
webpage , u ' title ' )
video_description = self . _html_search_regex ( r ' <meta content=(?: " ([^ " ]+) " | \' ([^ \' ]+) \' ) name= \' description \' ' ,
webpage , u ' description ' , fatal = False )
thumbnail = self . _html_search_regex ( r ' <meta content= \' (.+?) \' property= \' og:image \' ' ,
webpage , u ' thumbnail ' , fatal = False )
return [ {
' id ' : video_id ,
' url ' : video_url ,
' ext ' : ' mp4 ' ,
' title ' : video_title ,
' description ' : video_description ,
' thumbnail ' : thumbnail ,
} ]