如何使用 Python 保存对 csv 的 API 响应

Question

我正在以这种形式从 API 获取面部检测数据：

{"id":1,"ageMin":0,"ageMax":100,"faceConfidence":66.72220611572266,"emotion":"ANGRY","emotionConfidence":50.0'
b'2540969848633,"eyeglasses":false,"eyeglassesConfidence":50.38102722167969,"eyesOpen":true,"eyesOpenConfidence":50.20328140258789'
b',"gender":"Male","genderConfidence":50.462989807128906,"smile":false,"smileConfidence":50.15522384643555,"sunglasses":false,"sun'
b'glassesConfidence":50.446510314941406}]'

我想将其保存到这样的 csv 文件中：

id  ageMin  ageMax  faceConfidence
1   0       100     66

...等等。我试过这样做：

response = requests.get(url, headers=headers)
    with open('detections.csv', 'w') as f:
        writer = csv.writer(f)
        for item in response:
            writer.writerow(str(item))

这会将每个字符放在自己的单元格中。我也尝试过使用 item.id，但出现错误：AttributeError: 'bytes' object has no attribute 'id'.

有人能给我指出正确的方向吗？

Answer 1

您可以使用 pandas 和 json 库相对轻松地完成此操作。

import pandas as pd
import json

response = """{
    "id": 1,
    "ageMin": 0,
    "ageMax": 100,
    "faceConfidence": 66.72220611572266,
    "emotion": "ANGRY",
    "emotionConfidence": 50.0,
    "eyeglasses": false,
    "eyeglassesConfidence": 50.38102722167969,
    "eyesOpen": true,
    "eyesOpenConfidence": 50.20328140258789,
    "gender": "Male",
    "genderConfidence": 50.462989807128906,
    "smile": false,
    "smileConfidence": 50.15522384643555,
    "sunglasses": false,
    "glassesConfidence":50.446510314941406
}"""

file = json.loads(doc)

json = pd.DataFrame({"data": file})
json.to_csv("response.csv")

这是格式为 csv 的响应。

,data
ageMax,100
ageMin,0
emotion,ANGRY
emotionConfidence,50.0
eyeglasses,False
eyeglassesConfidence,50.38102722167969
eyesOpen,True
eyesOpenConfidence,50.20328140258789
faceConfidence,66.72220611572266
gender,Male
genderConfidence,50.462989807128906
glassesConfidence,50.446510314941406
id,1
smile,False
smileConfidence,50.15522384643555
sunglasses,False

Answer 2

对于小任务来说可能有点矫枉过正，但您可以执行以下操作：

将JSON响应（不要忘记检查异常等）转换为python字典

dic = response.json()
创建数据框，例如使用 pandas:

df = pandas.DataFrame(dic)
保存到 csv 省略索引：

df.to_csv('detections.csv', index=False, sep="\t")

如何使用 Python 保存对 csv 的 API 响应

How to save API response to csv with Python

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python-3.x