如何在YouTube頻道上獲取最新上傳視頻的ID

Question

如何在使用Python的特定YouTube頻道中獲取最新上傳視頻的ID？

Answer 1

您可以請求JSON並解析它。以下代碼爲您提供第一個（最新）結果並將其存儲在first中。

import urllib, json 

author = 'Google' 
inp = urllib.urlopen(r'http://gdata.youtube.com/feeds/api/videos?max-results=1&alt=json&orderby=published&author=' + author) 
resp = json.load(inp) 
inp.close() 

first = resp['feed']['entry'][0] 

# Title of the video 
print first['title'] 

# URL 
print first['link'][0]['href'] 

我只是在交互式Python shell中查看JSON對象。您可以build your own query或使用我發佈的那個。記得改變作者。這是一個較低層次的方法，而@Frederik提到了一些更高的層次。

first對象看起來像這樣。

{ 
    "author": [ 
     { 
      "name": { 
       "$t": "Google" 
      }, 
      "uri": { 
       "$t": "http://gdata.youtube.com/feeds/api/users/google" 
      } 
     } 
    ], 
    "category": [ 
     { 
      "scheme": "http://schemas.google.com/g/2005#kind", 
      "term": "http://gdata.youtube.com/schemas/2007#video" 
     }, 
     { 
      "label": "Science & Technology", 
      "scheme": "http://gdata.youtube.com/schemas/2007/categories.cat", 
      "term": "Tech" 
     }, 
     { 
      "scheme": "http://gdata.youtube.com/schemas/2007/keywords.cat", 
      "term": "Google Currents" 
     }, 
     { 
      "scheme": "http://gdata.youtube.com/schemas/2007/keywords.cat", 
      "term": "Google" 
     }, 
     { 
      "scheme": "http://gdata.youtube.com/schemas/2007/keywords.cat", 
      "term": "Currents" 
     }, 
     { 
      "scheme": "http://gdata.youtube.com/schemas/2007/keywords.cat", 
      "term": "Magazine App" 
     }, 
     { 
      "scheme": "http://gdata.youtube.com/schemas/2007/keywords.cat", 
      "term": "Reader App" 
     }, 
     { 
      "scheme": "http://gdata.youtube.com/schemas/2007/keywords.cat", 
      "term": "Android" 
     }, 
     { 
      "scheme": "http://gdata.youtube.com/schemas/2007/keywords.cat", 
      "term": "ios" 
     }, 
     { 
      "scheme": "http://gdata.youtube.com/schemas/2007/keywords.cat", 
      "term": "Android phone" 
     }, 
     { 
      "scheme": "http://gdata.youtube.com/schemas/2007/keywords.cat", 
      "term": "Android tablet" 
     }, 
     { 
      "scheme": "http://gdata.youtube.com/schemas/2007/keywords.cat", 
      "term": "iphone" 
     }, 
     { 
      "scheme": "http://gdata.youtube.com/schemas/2007/keywords.cat", 
      "term": "ipad" 
     } 
    ], 
    "content": { 
     "$t": "Google Currents is a new mobile app that lets you enjoy free online magazines and other content optimized for your Android or Apple phones and tablets. Learn more at www.google.com", 
     "type": "text" 
    }, 
    "gd$comments": { 
     "gd$feedLink": { 
      "countHint": 463, 
      "href": "http://gdata.youtube.com/feeds/api/videos/5LOcUkm8m9w/comments" 
     } 
    }, 
    "gd$rating": { 
     "average": 4.7557077, 
     "max": 5, 
     "min": 1, 
     "numRaters": 1752, 
     "rel": "http://schemas.google.com/g/2005#overall" 
    }, 
    "id": { 
     "$t": "http://gdata.youtube.com/feeds/api/videos/5LOcUkm8m9w" 
    }, 
    "link": [ 
     { 
      "href": "http://www.youtube.com/watch?v=5LOcUkm8m9w&feature=youtube_gdata", 
      "rel": "alternate", 
      "type": "text/html" 
     }, 
     { 
      "href": "http://gdata.youtube.com/feeds/api/videos/5LOcUkm8m9w/responses", 
      "rel": "http://gdata.youtube.com/schemas/2007#video.responses", 
      "type": "application/atom+xml" 
     }, 
     { 
      "href": "http://gdata.youtube.com/feeds/api/videos/5LOcUkm8m9w/related", 
      "rel": "http://gdata.youtube.com/schemas/2007#video.related", 
      "type": "application/atom+xml" 
     }, 
     { 
      "href": "http://m.youtube.com/details?v=5LOcUkm8m9w", 
      "rel": "http://gdata.youtube.com/schemas/2007#mobile", 
      "type": "text/html" 
     }, 
     { 
      "href": "http://gdata.youtube.com/feeds/api/videos/5LOcUkm8m9w", 
      "rel": "self", 
      "type": "application/atom+xml" 
     } 
    ], 
    "media$group": { 
     "media$category": [ 
      { 
       "$t": "Tech", 
       "label": "Science & Technology", 
       "scheme": "http://gdata.youtube.com/schemas/2007/categories.cat" 
      } 
     ], 
     "media$content": [ 
      { 
       "duration": 94, 
       "expression": "full", 
       "isDefault": "true", 
       "medium": "video", 
       "type": "application/x-shockwave-flash", 
       "url": "http://www.youtube.com/v/5LOcUkm8m9w?version=3&f=videos&app=youtube_gdata", 
       "yt$format": 5 
      }, 
      { 
       "duration": 94, 
       "expression": "full", 
       "medium": "video", 
       "type": "video/3gpp", 
       "url": "rtsp://v1.cache8.c.youtube.com/CiILENy73wIaGQncm7xJUpyz5BMYDSANFEgGUgZ2aWRlb3MM/0/0/0/video.3gp", 
       "yt$format": 1 
      }, 
      { 
       "duration": 94, 
       "expression": "full", 
       "medium": "video", 
       "type": "video/3gpp", 
       "url": "rtsp://v5.cache4.c.youtube.com/CiILENy73wIaGQncm7xJUpyz5BMYESARFEgGUgZ2aWRlb3MM/0/0/0/video.3gp", 
       "yt$format": 6 
      } 
     ], 
     "media$description": { 
      "$t": "Google Currents is a new mobile app that lets you enjoy free online magazines and other content optimized for your Android or Apple phones and tablets. Learn more at www.google.com", 
      "type": "plain" 
     }, 
     "media$keywords": { 
      "$t": "Google Currents, Google, Currents, Magazine App, Reader App, Android, ios, Android phone, Android tablet, iphone, ipad" 
     }, 
     "media$player": [ 
      { 
       "url": "http://www.youtube.com/watch?v=5LOcUkm8m9w&feature=youtube_gdata_player" 
      } 
     ], 
     "media$thumbnail": [ 
      { 
       "height": 360, 
       "time": "00:00:47", 
       "url": "http://i.ytimg.com/vi/5LOcUkm8m9w/0.jpg", 
       "width": 480 
      }, 
      { 
       "height": 90, 
       "time": "00:00:23.500", 
       "url": "http://i.ytimg.com/vi/5LOcUkm8m9w/1.jpg", 
       "width": 120 
      }, 
      { 
       "height": 90, 
       "time": "00:00:47", 
       "url": "http://i.ytimg.com/vi/5LOcUkm8m9w/2.jpg", 
       "width": 120 
      }, 
      { 
       "height": 90, 
       "time": "00:01:10.500", 
       "url": "http://i.ytimg.com/vi/5LOcUkm8m9w/3.jpg", 
       "width": 120 
      } 
     ], 
     "media$title": { 
      "$t": "Introducing Google Currents", 
      "type": "plain" 
     }, 
     "yt$duration": { 
      "seconds": "94" 
     } 
    }, 
    "published": { 
     "$t": "2011-12-08T09:10:07.000Z" 
    }, 
    "title": { 
     "$t": "Introducing Google Currents", 
     "type": "text" 
    }, 
    "updated": { 
     "$t": "2011-12-14T12:57:53.000Z" 
    }, 
    "yt$hd": {}, 
    "yt$statistics": { 
     "favoriteCount": "312", 
     "viewCount": "420050" 
    } 
}