将 JSON 转换为 CSV 并使用 Python 合并对象

Question

我有 JSON 文件，需要转换成 CSV 格式。示例 JSON 数据：

{
    "books":[
        {
            "id":"1",
            "story":{
                "title":"Lonely lion",
                "writers":[
                    {
                        "lastName":"John",
                        "firstName":"Louis"
                    },
                    {
                        "lastName":"Nick",
                        "firstName":"Fed"
                    }
                ],
                "slot":[
                    {
                        "slotid":1112,
                        "region":{
                            "US":11,
                            "CA":1
                        }
                    }
                ]
            },
            "description":[
                {
                    "release":false,
                    "author":[
                        {
                            "name":"John",
                            "main":1
                        },
                        {
                            "name":"Jeroge",
                            "main":0
                        },
                        {
                            "name":"Peter",
                            "main":0
                        }
                    ]
                }
            ]
        },
        {
            "id":"2",
            "story":{
                "title":"Lonely lion",
                "writers":[
                    {
                        "lastName":"John",
                        "firstName":"Louis"
                    },
                    {
                        "lastName":"Nick",
                        "firstName":"Fed"
                    }
                ],
                "slot":[
                    {
                        "slotid":1112,
                        "region":{
                            "US":11
                        }
                    }
                ]
            },
            "description":[
                {
                    "release":false,
                    "author":[
                        {
                            "name":"Jeroge",
                            "main":1
                        }
                    ]
                }
            ]
        }
    ]
}

我使用了下面的代码：

with open(jsonFilename, 'r',encoding='UTF-8') as jsonInput:
    json_data = json.loads(jsonInput.read())


cols=['id','title','authorname','authortmain','writers','slotinfo']
mergeList = []
for i,books in enumerate(json_data["books"]):



    for j in range(len(books ["description"][0]['author'])):
        id=books['id']

        title=books["story"]['title']
        authorname=books["description"][0]['author'][j]['name']
        authortmain=books["description"][0]['author'][j]['main']
        writers=books["story"]['writers']
        slotinfo=books["story"]['slot']

        mergeList.append((id,title,authorname,authortmain,writers,slotinfo))

它给了我以下输出：作者和插槽信息以列表形式出现，但我需要使用 spearator 将它们合并。

我得到的输出：

id,title,authorname,authortmain,writers,slotinfo
1,Lonely lion,John,1,"[{'lastName': 'John', 'firstName': 'Louis'}, {'lastName': 'Nick', 'firstName': 'Fed'}]","[{'slotid': 1112, 'region': {'US': 11, 'CA': 1}}]"
1,Lonely lion,Jeroge,0,"[{'lastName': 'John', 'firstName': 'Louis'}, {'lastName': 'Nick', 'firstName': 'Fed'}]","[{'slotid': 1112, 'region': {'US': 11, 'CA': 1}}]"
1,Lonely lion,Peter,0,"[{'lastName': 'John', 'firstName': 'Louis'}, {'lastName': 'Nick', 'firstName': 'Fed'}]","[{'slotid': 1112, 'region': {'US': 11, 'CA': 1}}]"
2,Lonely lion,Jeroge,1,"[{'lastName': 'John', 'firstName': 'Louis'}, {'lastName': 'Nick', 'firstName': 'Fed'}]","[{'slotid': 1112, 'region': {'US': 11, 'CA': 1}}]"

但我想使用“/”作为分隔符来合并作者信息和插槽信息。我需要运行其他循环，但我有点困惑如何实现它。

期望的输出：

1,Lonely lion,John,1,"John,Louis/Nick,Fed","US: 11/CA: 1"
1,Lonely lion,Jeroge,0,"John,Louis/Nick,Fed","US: 11/CA: 1"
1,Lonely lion,Peter,0,"John,Louis/Nick,Fed","US: 11/CA: 1"
2,Lonely lion,Jeroge,1,"John,Louis/Nick,Fed","US: 11"

Answer 1

它适用于 python3.x。在 python2.7 中，encoding='UTF-8' 将不起作用。

import json

with open(jsonFilename, 'r', encoding='UTF-8') as jsonInput:
    json_data = json.loads(jsonInput.read())


cols=['id','title','authorname','authortmain','writers','slotinfo']
mergeList = []
for i,books in enumerate(json_data["books"]):



    for j in range(len(books ["description"][0]['author'])):
        id=books['id']

        title=books["story"]['title']
        authorname=books["description"][0]['author'][j]['name']
        authortmain=books["description"][0]['author'][j]['main']
        # writers=books["story"]['writers']
        writers = []
        for writer in books['story']['writers']:
            name = '{},{}'.format(writer['firstName'], writer['lastName'])
            writers.append(name)
        # slotinfo=books["story"]['slot']
        writers = '/'.join(writers)
        slotinfo = []
        for slot in books['story']['slot']:
            for key,value in slot['region'].items():
                item = '{}: {}'.format(key, value)
                slotinfo.append(item)
        slotinfo = '/'.join(slotinfo)

        mergeList.append((id,title,authorname,authortmain,writers,slotinfo))
        
print(mergeList)

将 JSON 转换为 CSV 并使用 Python 合并对象

convert JSON into CSV and merge object using Python

python

python-2.7

python-3.x