我想把dict作为gzip压缩的json对象写入一个json文件。
我有一些解决方案，但随着文件变大，附加过程变得越来越慢。所以加载文件不是办法。
我在这里找到了解决方案：

def append_record_seek(data,filename):
    print('append_record_seek started with data:{data} filename:{filename}')
    with open (filename, mode="r+") as file:
        file.seek(os.stat(filename).st_size -1)
        file.write( ",]".format(json.dumps(data)) )

稍后，我想读取该文件作为一个字典列表。
下面是我的最小代码示例：

import global_variables as gv
import time
import json as json
import base64
import io
import sys
import cv2
import gzip

import numpy as np

import os

from numpy import asarray
from json import JSONEncoder



data = {
  "brand": "Ford",
  "model": "Mustang",
  "year": 1964
}
path = r'C:/Videotool/Data'
name = 'test'
filename = path + '/' + name + '.json'
isExist = os.path.exists(path)
if not isExist:
    os.makedirs(path)
os.chdir(path)



def first_writer(data,filename):
    print(f'first_writer started with data:{data} filename:{filename}')
    with open (filename, 'w') as file:
        file.write('[')
        file.write(json.dumps(data))
        file.write(',')
        file.write(']')

        
def append_record_seek(data,filename):
    print('append_record_seek started with data:{data} filename:{filename}')
    with open (filename, mode="r+") as file:
        file.seek(os.stat(filename).st_size -1)
        file.write( ",]".format(json.dumps(data)) )



for x in range(6):
    print(f'step:{x}')
    file_exists = os.path.exists(name+'.json')
    if file_exists:
        print('file_exists')
        append_record_seek(data,filename)
    else:
        print('else')
        first_writer(data,filename)

未压缩的结果应如下所示：

[{"brand": "Ford", "model": "Mustang", "year": 1964},
{"brand": "Ford", "model": "Mustang", "year": 1964},
{"brand": "Ford", "model": "Mustang", "year": 1964},
{"brand": "Ford", "model": "Mustang", "year": 1964},
{"brand": "Ford", "model": "Mustang", "year": 1964}]

我的结果是：[{"brand": "Ford", "model": "Mustang", "year": 1964},,,,,,]
如果那有用的话，我想在写作前把垃圾压缩一下。
我希望有人能帮忙
更新：我已经得到了正确的Json格式：

def first_writer(data,filename):
    print(f'first_writer started with data:{data} filename:{filename}')
    with open (filename, 'w') as file:
        file.write( "[{}]".format(json.dumps(data)) )

        
def append_record_seek(data,filename):
    print('append_record_seek started with data:{data} filename:{filename}')
    with open (filename, mode="r+") as file:
        file.seek(os.stat(filename).st_size -1)
        file.write( ",{}]".format(json.dumps(data)) )

现在我得把拉链拉上...