我有大量的字典，所以我创建了新的Json文件与字典，但字典不添加到一个列表，而创建新的Json文件，它不会删除最后一个逗号
在这里我写我的数据看起来像，谁能建议更好的方式
提前感谢帮助将不胜感激！

json_dict = {}
for li in jsonli:
  json_dict.update(li)

with open(r"D:\Users\laki.aya\Desktop\Invalidemail\stc.json", 'a+') as fout:
  fout.write(json.dumps(json_dict, indent = 4,default=str))
  fout.write(',\n')
  fout.close()

我得到的输出如下所示：

{
    "email": "zxxxccxxcc@gmail.com",
    "properties": [
        {
            "property": "XlinkUserID",
            "value": 5123456
        },
        {
            "property": "register_time",
            "value": "2022-12-01"
        },
        {
            "property": "linked_alexa",
            "value": 0
        },
        {
            "property": "linked_googlehome",
            "value": 0
        },
        {
            "property": "n0x89_direct_connect_full_color_bulb__a19_",
            "value": 1
        }
    ]
},
{
    "email": "zyyyyyyuser@gmail.com",
    "properties": [
        {
            "property": "XlinkUserID",
            "value": 188882272
        },
        {
            "property": "register_time",
            "value": "2022-09-16"
        },
        {
            "property": "linked_alexa",
            "value": 1
        },
        {
            "property": "linked_googlehome",
            "value": 0
        },
        {
            "property": "n0x89_direct_connect_full_color_bulb__a19_",
            "value": 1
        }
    ]
},
{
    "email": "z3@gmail.com",
    "properties": [
        {
            "property": "XlinkUserID",
            "value": 100000708
        },
        {
            "property": "register_time",
            "value": "2022-11-30"
        },
        {
            "property": "linked_alexa",
            "value": 0
        },
        {
            "property": "linked_googlehome",
            "value": 0
        },
        {
            "property": "n0x89_direct_connect_full_color_bulb__a19_",
            "value": 1
        }
    ]
},

我希望数据应该在一个列表中，并删除最后一个逗号
预期

[  
    {
    "email": "zxxxccxxcc@gmail.com",
    "properties": [
        {
            "property": "XlinkUserID",
            "value": 5123456
        },
        {
            "property": "register_time",
            "value": "2022-12-01"
        },
        {
            "property": "linked_alexa",
            "value": 0
        },
        {
            "property": "linked_googlehome",
            "value": 0
        },
        {
            "property": "n0x89_direct_connect_full_color_bulb__a19_",
            "value": 1
        }
    ]
},
{
    "email": "zyyyyyyuser@gmail.com",
    "properties": [
        {
            "property": "XlinkUserID",
            "value": 188882272
        },
        {
            "property": "register_time",
            "value": "2022-09-16"
        },
        {
            "property": "linked_alexa",
            "value": 1
        },
        {
            "property": "linked_googlehome",
            "value": 0
        },
        {
            "property": "n0x89_direct_connect_full_color_bulb__a19_",
            "value": 1
        }
    ]
},
{
    "email": "z3@gmail.com",
    "properties": [
        {
            "property": "XlinkUserID",
            "value": 100000708
        },
        {
            "property": "register_time",
            "value": "2022-11-30"
        },
        {
            "property": "linked_alexa",
            "value": 0
        },
        {
            "property": "linked_googlehome",
            "value": 0
        },
        {
            "property": "n0x89_direct_connect_full_color_bulb__a19_",
            "value": 1
        }
    ]
}
]

请建议更好的方法