def sina_download_by_vkey(vkey, title=None, output_dir='.', merge=True, info_only=False):
 url = ('http://video.sina.com/v/flvideo/%s_0.flv' % vkey)
 (type, ext, size) = url_info(url)
 print_info(site_info, title, 'flv', size)
 if (not info_only):
  download_urls([url], title, 'flv', size, output_dir=output_dir, merge=merge)

def sina_download_by_vkey ( vkey , title = None , output_dir = '.' , merge = True , info_only = False ) : url = ( 'http://video.sina.com/v/flvideo/%s_0.flv' % vkey ) ( type , ext , size ) = url_info ( url ) print_info ( site_info , title , 'flv' , size ) if ( not info_only ) : download_urls ( [ url ] , title , 'flv' , size , output_dir = output_dir , merge = merge )
downloads a sina video by its unique vkey .