如何从 CSV 文件转换为键控格式的 JSON？

Question

目前，我正在使用以下代码创建 JSON：

import pandas as pd
my_csv = pd.DataFrame(pd.read_csv("output.csv", sep = ",", header = 0, index_col = False, encoding='utf-8-sig'))
json_file = my_csv.to_json( orient = "records",  date_format = "epoch",   double_precision = 10, date_unit = "ms", default_handler = None)
file = open("newJsonfile.json", "w") 
file.write(json_file) 
file.close()

输出是这样的：

{
    "title": "Sample Title 1 here",
    "description": "Sample description 1 here"
},
    {
    "title": "Sample Title 2 here",
    "description": "Sample description 2 here"
},

但是，这个网站：https://www.convertcsv.com/csv-to-json.htm 有一个 Keyed JSON 选项，在解析后收到这个输出：

{
   "1": {              
           "title": "Sample Title 1 here",
           "description": "
        },
   "2": {
           "title": "Sample Title 2 here",
           "description": "Sample description 2 here"   
 }

如何使用 Python 实现此目的，因为每次打开此网站并进行转换是不可行的？

Answer 1

keyed = {}
for idx,x in enumerate(a):
    keyed[str(idx)]=x

Answer 2

我在你的问题中加载数据：

data = [{
    "title": "Sample Title 1 here",
    "description": "Sample description 1 here"
},
    {
    "title": "Sample Title 2 here",
    "description": "Sample description 2 here"
}]
df = pd.DataFrame(data)
print(df)

                 title                description
0  Sample Title 1 here  Sample description 1 here
1  Sample Title 2 here  Sample description 2 here

那么，df.to_json()和orient='index'就可以了

json_file = df.to_json(orient='index',indent=4)
print(json_file)

{
    "0":{
        "title":"Sample Title 1 here",
        "description":"Sample description 1 here"
    },
    "1":{
        "title":"Sample Title 2 here",
        "description":"Sample description 2 here"
    }
}

如果你想从 1 而不是 0 开始索引，你可以在 df.to_json()

之前重建索引

df.index = range(1,df.shape[0]+1)
json_file = df.to_json(orient='index',indent=4)
print(json_file)

{
    "1":{
        "title":"Sample Title 1 here",
        "description":"Sample description 1 here"
    },
    "2":{
        "title":"Sample Title 2 here",
        "description":"Sample description 2 here"
    }
}

如何从 CSV 文件转换为键控格式的 JSON？

How to convert to JSON in a Keyed Format from a CSV file?

python

csv

json

key