python - 建立JSON格式时出现问题。在字典和集合之间选择？

我正在构建json格式，预期如下所示：

{
 accounts:[   {
      "acctnum": "acct1",
      "key2":"value2"
      "key3": []
      "summary" : {
          //nested dict
      }
    }

   ]  //if we have 1 account for given customer
}

如果我们有多个客户帐户：

{
 accounts:[   {
      "acctnum": "acct1",   // for acct1
      "key2":"value2"
      "key3": []
      "summary" : {
          //nested dict
      }
    },
    {
        "acctnum": "acct2",   //for acct2
        "key2":"value3"
        "key3": []
        "summary" : {
            //nested dict
        }
      }
    ]
}

用acct1的必需属性构建字典后，我的结尾代码是（并且有疑问是否应该使用collections模块）：

acctlist = []
acctlist = results  //results is dict for acct1 (with nested dict)
print(acctlist)
accounts  = {}
accounts["accounts"] = acctlist
j = json.dumps(accounts, indent=4)
print(j)

但是实际的json格式显示为：

{
 accounts: {
      "acctnum": "acct1",
      "key2":"value2"
      "key3": []
      "summary1" : {
          //nested dict
      }
    }
}

最佳答案

您的印刷声明可能会回答您的问题。是清单吗？

acctlist = []
acctlist = results  //results is dict for acct1 (with nested dict)
print(acctlist)

我怀疑您打算这样做acctlist.append(results)