Question

我已经开始了一个小项目，以便在python上取得更好的成绩。对于这个项目，我需要从标题中包含单词rp的人那里获取user_ids。我知道如何使用以下代码从json api响应中获取所有user_id＃s： [x['user_id'] for x in data['data']]

但现在我想只获取其标题中包含单词rp的用户的user_id。但我似乎无法弄清楚如何做到这一点。

来自twitch API的json响应：

{  
   'data':[  
  {  
     'id':'27144974352',
     'user_id':'23308993',
     'game_id':'32982',
     'community_ids':[  
        'af543777-83ec-402d-8245-30da1409e22a',
        'c0294643-085c-4943-94ab-f0e1ba090e23',
        'd74020e4-53af-48c3-b3d1-f23500a490c8'
     ],
     'type':'live',
     'title':'[COMBROS] Джордж Бруйвик - All of this #9',
     'viewer_count':1326,
     'started_at':'2018-01-02T05:36:07Z',
     'language':'en',
     'thumbnail_url':'https://static-cdn.jtvnw.net/previews-ttv/live_user_igorghk-{width}x{height}.jpg'
  },
  {  
     'id':'27146956464',
     'user_id':'68064974',
     'game_id':'32982',
     'community_ids':[  

     ],
     'type':'live',
     'title':'HYVÄÄ UUTTAVUOTTA // 3.1.18 klo: 12-00 12h Livestream subien kunniaksi! // !subgiveaway',
     'viewer_count':998,
     'started_at':'2018-01-02T12:58:49Z',
     'language':'en',
     'thumbnail_url':'https://static-cdn.jtvnw.net/previews-ttv/live_user_mrtuomostream-{width}x{height}.jpg'
  },
  {  
     'id':'27147162448',
     'user_id':'58529158',
     'game_id':'32982',
     'community_ids':[  
        '5181e78f-2280-42a6-873d-758e25a7c313',
        'a61f2599-ba45-4391-905c-ca0c8cbf61a6',
        'ff1e77af-551d-4993-945c-f8ceaa2a2829'
     ],
     'type':'live',
     'title':'( English ) Happy New Year | Kaitlyn Maw',
     'viewer_count':781,
     'started_at':'2018-01-02T13:36:32Z',
     'language':'en',
     'thumbnail_url':'https://static-cdn.jtvnw.net/previews-ttv/live_user_katie-{width}x{height}.jpg'
  },
  {  
     'id':'27147842992',
     'user_id':'69759951',
     'game_id':'32982',
     'community_ids':[  

     ],
     'type':'live',
     'title':'GTARP - Kudo Kai - NoPixel',
     'viewer_count':312,
     'started_at':'2018-01-02T15:24:50Z',
     'language':'en',
     'thumbnail_url':'https://static-cdn.jtvnw.net/previews-ttv/live_user_vader-{width}x{height}.jpg'
  },
  {  
     'id':'27144250400',
     'user_id':'3345556',
     'game_id':'32982',
     'community_ids':[  
        'ab18bbee-75ed-409d-aba9-8d4e3e2e541a'
     ],

Answer 1

对于一个子字符串：

[x['user_id'] for x in data['data'] if 'rp' in x['title'].lower()]

对于多个子字符串：

[x['user_id'] for x in data['data'] if any(s in x.get('title', '').lower() for s in ['hey', 'hi', 'rp'])]

由于这变得复杂，这是它的正常迭代版本：

ids = []
parts = ['hey', 'hi', 'rp']
for user in data['data']:
    title = user.get('title', '').lower()
    if any(part in title for part in parts):
        ids.append(user['user_id'])

Answer 2

我会在上面添加此评论作为对Omar评论的评论，但我没有代表。

当它回到示例JSON中的最后一个条目时，该答案将抛出异常，因为没有'title'条目。

你需要做

[x['user_id'] for x in data['data'] if 'rp' in x.get('title', '').lower()]

Answer 3

尝试使用＆＃39; if＆＃39;在您现有的代码中

[x ['user_id'] for x in data['data'] if 'rp' in x['title']]

Answer 4

我想使用过滤方法：

一线解决方案：

print(list(filter(lambda x:'rp' in x['title'].lower(),data['data'])))

输出：

[{'user_id': '69759951', 'community_ids': [], 'title': 'GTARP - Kudo Kai - NoPixel', 'thumbnail_url': 'https://static-cdn.jtvnw.net/previews-ttv/live_user_vader-{width}x{height}.jpg', 'viewer_count': 312, 'started_at': '2018-01-02T15:24:50Z', 'game_id': '32982', 'language': 'en', 'type': 'live', 'id': '27147842992'}]

当数据是：

data={
   'data':[
  {
     'id':'27144974352',
     'user_id':'23308993',
     'game_id':'32982',
     'community_ids':[
        'af543777-83ec-402d-8245-30da1409e22a',
        'c0294643-085c-4943-94ab-f0e1ba090e23',
        'd74020e4-53af-48c3-b3d1-f23500a490c8'
     ],
     'type':'live',
     'title':'[COMBROS] Джордж Бруйвик - All of this #9',
     'viewer_count':1326,
     'started_at':'2018-01-02T05:36:07Z',
     'language':'en',
     'thumbnail_url':'https://static-cdn.jtvnw.net/previews-ttv/live_user_igorghk-{width}x{height}.jpg'
  },
  {
     'id':'27146956464',
     'user_id':'68064974',
     'game_id':'32982',
     'community_ids':[

     ],
     'type':'live',
     'title':'HYVÄÄ UUTTAVUOTTA // 3.1.18 klo: 12-00 12h Livestream subien kunniaksi! // !subgiveaway',
     'viewer_count':998,
     'started_at':'2018-01-02T12:58:49Z',
     'language':'en',
     'thumbnail_url':'https://static-cdn.jtvnw.net/previews-ttv/live_user_mrtuomostream-{width}x{height}.jpg'
  },
  {
     'id':'27147162448',
     'user_id':'58529158',
     'game_id':'32982',
     'community_ids':[
        '5181e78f-2280-42a6-873d-758e25a7c313',
        'a61f2599-ba45-4391-905c-ca0c8cbf61a6',
        'ff1e77af-551d-4993-945c-f8ceaa2a2829'
     ],
     'type':'live',
     'title':'( English ) Happy New Year | Kaitlyn Maw',
     'viewer_count':781,
     'started_at':'2018-01-02T13:36:32Z',
     'language':'en',
     'thumbnail_url':'https://static-cdn.jtvnw.net/previews-ttv/live_user_katie-{width}x{height}.jpg'
  },
  {
     'id':'27147842992',
     'user_id':'69759951',
     'game_id':'32982',
     'community_ids':[

     ],
     'type':'live',
     'title':'GTARP - Kudo Kai - NoPixel',
     'viewer_count':312,
     'started_at':'2018-01-02T15:24:50Z',
     'language':'en',
     'thumbnail_url':'https://static-cdn.jtvnw.net/previews-ttv/live_user_vader-{width}x{height}.jpg'
  },


]

}

如果其他键包含单词rp

4 个答案: