将 json 文件转换为 csv 时出现值错误答案

【问题标题】：Value error when converting json file into csv将 json 文件转换为 csv 时出现值错误
【发布时间】：2022-11-07 14:47:15
【问题描述】：

我有 json 文件，如下所示，我想将此 json 文件转换为 csv 文件。当我运行代码时，它给了我价值错误。有人可以让我知道如何将下面的 json 转换为 csv 吗？

[{"VESSEL_NO":"99999","SYSTEM_NAME":"ANEMOMETER","SYSTEM_INSTANCE":"1","EVENT_TIME":"2022-03-05 00:00:00.000","DATA":"{\"/TRUE_WIND_DIRECTION\" : 350.1, \"/TRUE_WIND_SPEED\":22.9}"},{"VESSEL_NO":"99999","SYSTEM_NAME":"ANEMOMETER","SYSTEM_INSTANCE":"1","EVENT_TIME":"2022-03-04 23:59:30.000","DATA":"{\"/TRUE_WIND_DIRECTION\" : 351.4, \"/TRUE_WIND_SPEED\" : 25.85}"},{"VESSEL_NO":"99999","SYSTEM_NAME":"ANEMOMETER","SYSTEM_INSTANCE":"1","EVENT_TIME":"2022-03-04 23:59:00.000","DATA":"{\"/TRUE_WIND_DIRECTION\" : 354.5, \"/TRUE_WIND_SPEED\" : 24.3}"},{"VESSEL_NO":"99999","SYSTEM_NAME":"ANEMOMETER","SYSTEM_INSTANCE":"1","EVENT_TIME":"2022-03-04 23:58:30.000","DATA":"{\"/TRUE_WIND_DIRECTION\" : 351.9, \"/TRUE_WIND_SPEED\" : 23.1}"},{"VESSEL_NO":"99999","SYSTEM_NAME":"ANEMOMETER","SYSTEM_INSTANCE":"1","EVENT_TIME":"2022-03-04 23:58:00.000","DATA":"{\"/TRUE_WIND_DIRECTION\" : 354.1, \"/TRUE_WIND_SPEED\" : 24.9}"},{"VESSEL_NO":"99999","SYSTEM_NAME":"ANEMOMETER","SYSTEM_INSTANCE":"1","EVENT_TIME":"2022-03-04 23:57:30.000","DATA":"{\"/TRUE_WIND_DIRECTION\" : 4.7, \"/TRUE_WIND_SPEED\" : 21.4}"},{"VESSEL_NO":"99999","SYSTEM_NAME":"ANEMOMETER","SYSTEM_INSTANCE":"1","EVENT_TIME":"2022-03-04 23:57:00.000","DATA":"{\"/TRUE_WIND_DIRECTION\" : 3.4, \"/TRUE_WIND_SPEED\" : 22.4}"},{"VESSEL_NO":"99999","SYSTEM_NAME":"ANEMOMETER","SYSTEM_INSTANCE":"1","EVENT_TIME":"2022-03-04 23:56:30.000","DATA":"{\"/TRUE_WIND_DIRECTION\" : 358.1, \"/TRUE_WIND_SPEED\" : 25.3}"}]

import pandas as pd
df = pd.read('data.json')

ValueError: Expected object or value

【问题讨论】：

标签： python json pandas

【解决方案1】：

read_json() 用于读取 JSON 文件：

import pandas as pd

df = pd.read_json("data.json")
df.to_csv("data.csv", index=False)

【讨论】：