【python】复杂对象的创建过程与转化为json

假设我们要实现以下这样一个json，用java很容易，用python如何实现呢？

{
    "data": {
        "KeyDetails": "",
        "action": {
            "a": "",
            "b": ""
        },
        "keyWord": [],
        "ordering": "",
        "para": {
            "c": "",
            "d": "",
            "e": ""
        },
        "p": "",
        "rank": "",
        "type": "1",
        "url": "",
        "verify": {
            "f": "",
            "g": ""
        }
    },
    "resultCode": "1",
    "resultMsg": "",
    "time": "2017-09-04 14:59:18"
}

先创建对象body

#!/user/bin/python
# -*- coding:utf-8 -*-
from hhh import hhh
class Body(object):
    # 初始化
    def __init__(self, **kwargs):
        resp = kwargs.get('resp', hhh())
        self.resultCode = kwargs.get('resultCode', '')
        self.resultMsg = kwargs.get('resultMsg', '')
        self.time = kwargs.get('time', '')
        self.data = hhh(p=resp.p,
                        type=resp.type,
                        keyWord=resp.keyWord,
                        KeyDetails=resp.KeyDetails,
                        ordering=resp.ordering,
                        rank=resp.rank,
                        url=resp.url,
                        a=resp.action.a,
                        b=resp.action.b,
                        c=resp.para.c,
                        d=resp.para.d,
                        e=resp.para.e,
                        f=resp.verify.f,
                        f=resp.verify.g
                        )

接下来创建hhh

#!/user/bin/python
#-*- coding:utf-8 -*-
class hhh(object):
    # 初始化
    def __init__(self, **kwargs):
        self.p= kwargs.get('p',  '')
        self.type = kwargs.get('type',  '') 
        self.keyWord = kwargs.get('keyWord',  []) 
        self.KeyDetails = kwargs.get('KeyDetails',  '') 
        self.ordering = kwargs.get('ordering',  '') 
        self.rank = kwargs.get('rank',  '') 
        self.url = kwargs.get('url',  '')  
        aa= kwargs.get('a',  '')
        bb= kwargs.get('b',  '')
        cc= kwargs.get('c',  '')
        dd= kwargs.get('d',  '')
        ee= kwargs.get('e',  '')
        ff= kwargs.get('f',  '')
        gg= kwargs.get('g',  '')
        self.action = Action(aa, bb) 
        self.para = Para(cc, dd, ee) 
        self.verify = Verify(ff, ff) 

然后分别创建Action，Para，Verify 类

class Action(object):
    def __init__(self, a, b):
        self.a= a
        self.b= b
class Para(object):
    def __init__(self, c, d, e):
        self.c= c
        self.d= d
        self.e= e
class Verify(object):
    def __init__(self, f, g):
        self.f= f
        self.g= g

创建body过程：

body.resultMsg = ‘获取成功’ 
body.resultCode = ‘1’ 
body.data = response # 已经创建好的hhh对象 
body.time = datetime.datetime.now().strftime(‘%Y-%m-%d %H:%M:%S’)

转成json过程：

result = json.dumps(body, default=lambda o: o.dict, sort_keys=True, indent=4)

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