字符串转化问题

比较喜欢玩梦幻西游，最近准备买号，自己看梦幻藏宝阁呢又没空，就想着用 scrapy 抓点符合要求的数据回来，但是，当抓到用户关键信息的时候，网易返回给我的是类似下面的一段字符串，我想着给他转成一个字典或者 python 内部能识别的数据格式，但是我发现我真的不知道怎么转化。我目前的方案之后一个，那就是正则匹配，但是我感觉正则匹配是不是蠢了点。有没有大神帮我解决下这个问题的。

这儿是返回的字符串：(我已经做好了换行，记住是一个字符串，不是 python 的 list、tuple、dict)

	'([
            "farm_level":"3",
            "usernum":10836654,
            "iMaxExpt3":20,
            "iBeastSki4":17,
            "rent":88332,
            "iCGTotalAmount":30,
            "xianyu":12,
            "iHp_Max":2711,
            "more_attr":(["attrs":({(["lv":0,"idx":1,]),(["lv":0,"idx":3,]),(["lv":0,"idx":9,]),(["lv":0,"idx":12,]),(["lv":0,"idx":8,]),(["lv":0,"idx":6,]),(["lv":0,"idx":11,]),(["lv":0,"idx":7,]),(["lv":0,"idx":5,]),(["lv":0,"idx":4,]),(["lv":0,"idx":2,]),(["lv":0,"idx":10,]),(["lv":129,"idx":13,]),(["lv":444,"idx":14,]),}),]),

                "AllRider":([7:(["mattrib":"","ExtraGrow":0,"exgrow":12904,"iGrade":125,"iType":508,"all_skills":([]),]),5:(["mattrib":"","ExtraGrow":0,"exgrow":13106,"iGrade":125,"iType":503,"all_skills":([]),]),4:(["mattrib":"体质","ExtraGrow":0,"exgrow":13112,"iGrade":125,"iType":502,"all_skills":([611:1,]),]),6:(["mattrib":"魔力","ExtraGrow":100,"exgrow":23075,"iGrade":125,"iType":508,"all_skills":([600:2,601:3,]),]),2:(["mattrib":"力量","ExtraGrow":90,"exgrow":22297,"iGrade":125,"iType":503,"all_skills":([600:2,601:3,]),]),]),

            "iLearnCash":8213515,
            "iBadness":0,
            "ExAvt":([11:(["order":7,"cName":"锦绣幻梦","iType":12823,]),9:(["order":11,"cName":"藤蔓蔓延","iType":14694,]),6:(["order":4,"cName":"落星织","iType":12750,]),2:(["order":5,"cName":"蓝色妖姬","iType":14404,]),1:(["order":10,"cName":"星光熠熠","iType":21513,]),3:(["order":9,"cName":"锦绣幻梦","iType":12817,]),10:(["order":8,"cName":"两心相悦","iType":14654,]),8:(["order":6,"cName":"星光熠熠","iType":21514,]),7:(["order":1,"cName":"萌草发卡","iType":13696,]),39:(["order":2,"cName":"狼牙棒","iType":11169,]),40:(["order":12,"cName":"怀旧巨魔王炫卡","iType":19287,]),4:(["order":3,"cName":"落星织","iType":40013,]),]),

            "iDef_All":410,
            "iSewski":472,
            "iSumAmount":9,
            "iSpe_All":119,
            "iMaxExpt4":20,
            "sword_score":1000,
            "AchPointTotal":4520,
            "iGoodness":7230,
            "addPoint":28,
            "iSumAmountEx":1,
            "cName":"水儋澹兮生烟",
            "iSaving":0,
            "rent_level":5,
            "iBeastSki3":17,

            ......
    )]'