如何使用Python从请求响应中筛选所需数据

我有一些get请求的响应存储在一个变量中，如下所示

dashboard = 'http://12.345.67.890:8000/api/search?query=&starred=false'
dashboardr = s.get(dashboard)
dashboards = dashboardr.content
print(dashboards)

[{"id":19,"title":"Apple","uri":"db/abc-api","type":"dash-db","tags":[],"isStarred":false},{"id":20,"title":"Banana","uri":"db/cde-api","type":"dash-db","tags":[],"isStarred":false},{"id":7,"title":"Mango","uri":"db/efg","type":"dash-db","tags":[],"isStarred":false}]

答案如下所示

dashboard = 'http://12.345.67.890:8000/api/search?query=&starred=false'
dashboardr = s.get(dashboard)
dashboards = dashboardr.content
print(dashboards)

[{"id":19,"title":"Apple","uri":"db/abc-api","type":"dash-db","tags":[],"isStarred":false},{"id":20,"title":"Banana","uri":"db/cde-api","type":"dash-db","tags":[],"isStarred":false},{"id":7,"title":"Mango","uri":"db/efg","type":"dash-db","tags":[],"isStarred":false}]

有人能帮我提取title的值并存储在另一个变量中吗

上述响应中的标题值为

苹果公司 香蕉 芒果 您可以将标题保存在列表变量中，而不是打印标题

您可以将标题保存在列表变量中，而不是打印标题

使用eval（仪表盘）代替仪表盘

dashboard = 'http://12.345.67.890:8000/api/search?query=&starred=false'
dashboardr = s.get(dashboard)
# eval() will convert a string to a python statement/expression
dashboards = eval(dashboardr.content)

title_list = []
for _ in dashboards:
   title_list.append(dashboards["title"])

使用eval（仪表板）而不是仪表板

dashboard = 'http://12.345.67.890:8000/api/search?query=&starred=false'
dashboardr = s.get(dashboard)
# eval() will convert a string to a python statement/expression
dashboards = eval(dashboardr.content)

title_list = []
for _ in dashboards:
   title_list.append(dashboards["title"])

---

假设来自HTTP调用的响应是字符串，下面的代码将提取标题

import json

response_str = '[{"id": 19, "title": "Apple", "uri": "db/abc-api", "type": "dash-db", "tags": [], "isStarred": false},{"id": 20, "title": "Banana", "uri": "db/cde-api", "type": "dash-db", "tags": [], "isStarred": false},{"id": 7, "title": "Mango", "uri": "db/efg", "type": "dash-db", "tags": [], "isStarred": false}]'
response_dict = json.loads(response_str)
titles = [entry['title'] for entry in response_dict]
print(titles)

输出：

[u'Apple', u'Banana', u'Mango']

---

假设来自HTTP调用的响应是字符串，下面的代码将提取标题

import json

response_str = '[{"id": 19, "title": "Apple", "uri": "db/abc-api", "type": "dash-db", "tags": [], "isStarred": false},{"id": 20, "title": "Banana", "uri": "db/cde-api", "type": "dash-db", "tags": [], "isStarred": false},{"id": 7, "title": "Mango", "uri": "db/efg", "type": "dash-db", "tags": [], "isStarred": false}]'
response_dict = json.loads(response_str)
titles = [entry['title'] for entry in response_dict]
print(titles)

输出：

[u'Apple', u'Banana', u'Mango']

---

这还不足以回答问题，它只修复了问题的第二部分，而不是如何解析响应。实现时，我得到了错误打印（i['title']）类型错误：字符串索引必须是整数，而不是包含eval函数的strw，我得到的是'for i in eval（a）：File'，第1行，在NameError中：没有定义名称'false'，这是因为这里的小写字母是“false”，而不是“false”。您可以使用.replace方法修复此问题。更新的答案这还不足以回答问题，它只修复了问题的第二部分，而不是如何解析响应。实现时，我得到了错误打印（i['title']）类型错误：字符串索引必须是整数，而不是strw，其中包含了eval函数，我得到的是'for i in eval（a）：File'，第1行，在NameError中：没有定义名称'false'，这是因为这里的小写字母是“false”，而不是“false”。您可以使用.replace方法修复此问题。更新的应答我收到的错误为dashboards=eval（dashboardr.content）文件“”，第1行，名称错误：未定义名称“false”。我收到的错误为dashboards=eval（dashboardr.content）文件“”，第1行，名称错误：未定义名称“false”