Question

我想创建一个像

这样的json文件

{
"a":["12","34","23",...],
"b":["13","14","45",....],
.
.
.
}

键应该来自列表：

lis = ['a','b',...]

和来自sql查询的值＆＃34;从＆＃34;中选择id + i，我通过＆＃34; i＆＃34;迭代列表。此查询只返回列ID。

以下是示例代码：

lis = ['a','b','c']
len_obj = len(lis)

with open("Dataset.json", 'w') as file:
    for i in lis:
        file.write(i)
        obj_query = i + '_query'       
        obj_query = sf.query("select id from " + i) 
        jsondata = json.loads(json.dumps(obj_query['records']))
        length = len(jsondata)
        i = {}
        k = 0

        for j in range(length):
            obj_id = jsondata[j]['Id']
            # print("id " + obj_id)

            if k == 0:
                ids = "\"" + obj_id + "\""
                k = 1
            else:
                ids = ids + ",\"" + obj_id + "\""  

        if count != len_obj - 1: 
            file.write(ids)    
        else:
            file.write(ids)    

        count += 1
    file.write("}")

最终输出应该是：

{
"a":["12","23",...],
"b":["234","456",...],
}

这是我的第一个博客和第一个程序。请指导我完成这个。

请原谅该程序的缩进，因为我无法正确写入该程序。

Answer 1

您只需创建一个包含您所追求的值的字典，然后使用json.dumps将其转换为json

import json
data = {}
data['a'] = ["12","34","23"]
data['b'] = ["13","14","45"]
json_data = json.dumps(data)
print json_data

Answer 2

你应该能够把整个事情压缩到这个：

import json

tables = ["a", "b", "c", "d"]
data = {}

for t in tables:
    results = sf.query("select id from %s" % t)["records"]
    data[t] = [r["id"] for r in results]

with open("Dataset.json", "w") as f:
    json.dump(data, f)

Answer 3

@Jaco

lis = ['a','b','c']

    with open("Dataset.json", 'w') as file:

        for i in lis:

            obj_query = i + '_query'       
            obj_query = sf.query("select id from " + i) 

            jsondata = json.loads(json.dumps(obj_query['records']))
            length = len(jsondata)

            # create dict
            data1 = {}
            k = 0
            for j in range(length):
                obj_id = jsondata[j]['Id']
                # print("id " + obj_id)

                if k == 0:

                    ids =  obj_id 
                    k = 1

                else:

                    ids = ids + "," + obj_id 

                data1[i] = [ids]

                json_data = json.dumps(data1)

        file.write(json_data)

我得到的回应是

{"a":["12,23,34.."]}{"b":["23,45,..."]}{...}

如何在Python中创建具有数组的json文件

3 个答案: