无法正确使用 python 写入 JSON 文件

Question

所以我有一个 discord 机器人，它保存了 minecraft 中一些地方的坐标。但是在保存坐标时，我无法正确写入 JSON 文件。当我第一次保存时它写得很好但是当我运行它再次给我错误。

代码：

@client.command(aliases = ["sc"])
async def save_cords(ctx, name,*, cords):
    uploader = ctx.author

    data = {"Uploader":f"{uploader}","Cords":f"{cords}","Name":f"{name}"}

    with open(f"test.json","a") as f:
        json.dump(data, f, indent=4)
        
    await ctx.send(f"Successfully saved cords. | Name: {name} | Cords: {cords}")

JSON 一次写入后的文件：

{
    "Uploader": "SastaSushi#6366",
    "Cords": "-88 0 -110",
    "Name": "cords"
}

JSON文件再次写入时：

{
    "Uploader": "SastaSushi#6366",
    "Cords": "-88 0 -110",
    "Name": "cords"
}{
    "Uploader": "SastaSushi#6366",
    "Cords": "-70 0 900",
    "Name": "village"
}

第二次写入时的错误如下：

我想确保它以没有错误的方式写入，并且我可以在需要时读取数据。

Answer 1

所以，你写的方式最终是错误的正确的方式是：

@client.command(aliases = ["sc"])
async def save_cords(ctx, name,*, cords):
    uploader = ctx.author
    with open("test.json",r) as file:
        data = json.load(file)
    nd = {}
    nd["uploader"] = uploader
    nd["Cords"] = cords
    nd["Name"] = name

    with open(f"test.json","a") as f:
        json.dump(nd, f, indent=4)
        
    await ctx.send(f"Successfully saved cords. | Name: {name} | Cords: {cords}")

尝试这个如果它不起作用回复我错误

Answer 2

所以，有人发布了此问题的答案但已将其删除，而且有效！所以这是现在的代码：

@client.command(aliases = ["sc"])
async def save_cords(ctx, name, *, cords):
    uploader = ctx.author

    try:
        with open("Data\file.json") as f:
            data = json.load(f)

    except FileNotFoundError:
        data = []

    if isinstance(data, dict):
        data = [data]

    data.append({"Uploader": f"{uploader}", "Cords": f"{cords}", "Name": f"{name}"})

    with open("Data\file.json","w") as f:
        json.dump(data, f, indent=4)

    await ctx.send(f"Successfully saved cords. | Name: {name} | Cords: {cords}")```

无法正确使用 python 写入 JSON 文件

Not able to write to JSON files using python correctly

python

json

minecraft

discord.py