Question

我的Python代码将JSON POST请求发送到服务，并返回带有信息的JSON。

我的代码：

for username in data:
    for text in data[username]:
        body = json.dumps({ "text": text['text'], "extract_type": "mitie"})
        r = requests.post('http://localhost:3003/api/extract/run', data=body, headers=headers)
        print "---New Request---"
        print (r.content)

我得到的回应：

---New Request---
[{"score":0.6997741063788492,"tag":"LOCATION","label":"USA"},
{"score":1.0501661504998254,"tag":"MISC","label":"European"}]
---New Request---
[{"score":0.12021601772708868,"tag":"ORGANIZATION","label":"NFL"}]
---New Request---
[{"score":0.16843877285343356,"tag":"MISC","label":"Watermel"},
{"score":0.46122731000101685,"tag":"MISC","label":"Professional"},
{"score":0.6470543353899144,"tag":"LOCATION","label":"USA"}]

我正在尝试检查它是否包含"tag":"LOCATION"，然后将label提取到变量中。

我尝试过添加

for username in data:
    for text in data[username]:
        #print text['text']
        body = json.dumps({ "text": text['text'], "extract_type": "mitie"})
        r = requests.post('http://54.174.131.124:3003/api/extract/run', data=body, headers=headers)
        print "---New Request---"
        print (r.content)

        if "LOCATION" in r.content['tag']:
            location = r.content['label']

但我收到错误TypeError: string indices must be integers, not str

Answer 1

在请求中，repsonse content是原始响应，它是一个字符串。您正在尝试将其用作dict，这就是r.content['tag']引发TypeError的原因。

为了使用响应json数据，您需要使用r.json()解码json响应。它将返回一个dicts列表（问题中的json数据，已解码），您可以通过'tag'过滤，然后提取标签。

Python过滤器特定的后响应

1 个答案: