Python 如何保存json文件并格式化

{"title_pinyin":"gywxw","title":"隔云勿相望","url":"http://www.ty2016.net/book/gywxw/","description":"大学刚毕业，她嫁给了林安森可是结婚三年，电视上常看到他出席各种场合携女相伴，她却再没再亲眼见过他。"}

{
    "title_pinyin":"gywxw",
    "title":"隔云勿相望",
    "url":"http://www.ty2016.net/book/gywxw/",
    "description":"大学刚毕业，她嫁给了林安森可是结婚三年，电视上常看到他出席各种场合携女相伴，她却再没再亲眼见过他。"
}

# -*- encoding: utf-8 -*-
class JsonFormatter:
    def __init__(self, intend=4, name="", encoding="utf-8"):
        '''
        intend: 缩进空格数
        name: 文件名
        encoding: 文件编码
        '''
        self.name = name
        self.intend = intend
        self.encoding = encoding
        self.stack = []
        self.obj = None
        self.source = self.get_source(name, self.encoding)
        self.prepare()
    @staticmethod
    def json_str(s):
        '''
        给字符串套上双引号
        '''
        return '"' + s + '"'
    @staticmethod
    def get_source(name, encoding="utf-8"):
        with open(name, 'r', encoding=encoding) as f:
            # 当不给split函数传递任何参数时，分隔符sep会采用任意形式的空白字符：空格、tab、换行、回车以及换页符
            return ''.join(f.read().split())
    def prepare(self):
        try:
            # python对象和json格式还是略有不同
            self.source = self.source.replace("null", "None").replace("true", "True").replace("false", "False")
            self.obj = eval(self.source)
        except:
            # json string 一定满足python dict和list的组合
            raise Exception('Invalid json string!')
    def line_intend(self, level=0):
        return '\n' + ' ' * self.intend * level
    def parse_dict(self,obj=None,intend_level=0):
        if intend_level == 0:
            # 这个判断是为了防止文件开头出现空行
            self.stack.append('{')
        else:
            self.stack.append(self.line_intend(intend_level)+'{')
        intend_level += 1
        i = 0
        for key, value in obj.items():
            key = self.json_str(str(key))
            self.stack.append(self.line_intend(intend_level)+key+':')
            self.parse(value, intend_level)
            if i != len(obj.items())-1:
                # 这个处理是为了防止最后一对kv后面还有个逗号，这样会造成json.load()函数无法读取
                self.stack.append(',')
            i += 1
        self.stack.append(self.line_intend(intend_level-1)+'}')
    def parse_list(self, obj=None, intend_level=0):
        if intend_level == 0:
            self.stack.append('[')
        else:
            self.stack.append(self.line_intend(intend_level)+'[')
        intend_level += 1
        for i, item in zip(range(0, len(obj)), obj):
            self.parse(item, intend_level)
            if i != len(obj)-1:
                self.stack.append(',')
        self.stack.append(self.line_intend(intend_level-1)+']')
    def parse(self, obj, intend_level=0):
        if obj is None:
            self.stack.append('null')
        elif obj is True:
            self.stack.append('true')
        elif obj is False:
            self.stack.append('false')
        elif isinstance(obj, (int, float)):
            self.stack.append(str(obj))
        elif isinstance(obj, str):
            self.stack.append(self.json_str(obj))
        elif isinstance(obj, (list, tuple)):
            self.parse_list(obj, intend_level)
        elif isinstance(obj, dict):
            self.parse_dict(obj, intend_level)
        else:
            raise Exception('Invalid json type %s!' % obj)
    def render(self):
        self.parse(self.obj, 0)
        res_file = self.name
        res = ''.join(self.stack)
        with open(res_file, 'w', encoding=self.encoding) as f:
            f.write(res)
if __name__ == "__main__":
    jf = JsonFormatter(name="json.txt")
    jf.render()

@app.route('/', methods=['GET', 'POST'])
def detail():
    one = {'name': 'xiaozhi', 'age': 188}
    mess1 = ['sss is  sss', 'aaa  aa aaaa']
    two = {"mess1": mess1}
    data = dict(one, **two)
    jsonData = json.dumps(data)
    fileObject = open('data.json', 'w')
    fileObject.write(jsonData)
    fileObject.close()
    return jsonify({"success": 200, "data": data})

@app.route('/history', methods=['GET', 'POST'])
def history():
    data = json.loads(request.form.get('data'))
    number = data['number']
    print(number)
    if number == '01':
        file = 'data.json'
        fb = open(file, 'r')
        dicts = json.load(fb)
        fb.close()
        myjson = json.dumps(dicts)
        return myjson
    return 'no history'

!DOCTYPE html>
html lang="en">
head>
    meta charset="UTF-8">
    title>test/title>
    script src="{{ url_for('static', filename='js/jquery-1.7.1.min.js') }}">/script>
/head>
body>
    input type="button" value="show log" οnclick="show()"/>
    input type="hidden" id="number" value="01">br>
    用户：a id="user">/a>br>
    年龄：a id="age">/a>br>
    信息：a id="p0">/a>br>
    a id="p1">/a>
/body>
script>
     function show(){
        var number= document.getElementById("number").value;
        var data= {
                data: JSON.stringify({
                    'number': number
                }),
            }
        $.ajax({
            url:"{{ url_for('history') }}",
            type:"post",
            data:data,
            dataType: 'json',
            success:function(data){
                $(user).text(data.name);
                 $(age).text(data.age);
                 for(var i=0;idata.mess1.length;i++){
                    $("#p"+i).text(data.mess1[i]);
                }
            },
            error:function(e){
                    alert("error");
            }
        })
    }
/script>
/html>