discord.py框架warn命令无报错不运行且机器人一分钟后离线问题排查

核心错误点 #

• 异步函数调用缺失await：addcaseidtodb中调用异步方法openuseless()时未加await，导致获取到的是协程对象而非字典数据，执行字典操作直接触发异常，是机器人崩溃无输出的核心原因
• ID生成逻辑错误：现有id_generator仅校验第一个ID是否重复就直接返回，未全量校验已存在ID，且生成的新ID未写入caseids.json，后续会出现ID重复问题
• 类型不匹配：warn函数中读取警告记录时，将字符串类型的存储ID与整数类型的member.id直接比较，判断永远为False，无法正确获取Case ID
• 日志逻辑错误：警告操作的日志模板误用了踢人相关的标题和描述
• 历史记录丢失：createinfraction中直接覆盖用户的警告记录，会清空该用户之前的所有警告数据
• 空文件兼容缺失：初始状态下如果两个JSON文件为空或不存在，json.load会直接抛出异常

修复后代码 #

# 新增空文件兼容处理
async def openinf():
    try:
        with open("infractions.json", "r") as f:
            users = json.load(f)
    except (FileNotFoundError, json.JSONDecodeError):
        users = {}
    return users

async def openuseless():
    try:
        with open("caseids.json", "r") as f:
            caseids = json.load(f)
    except (FileNotFoundError, json.JSONDecodeError):
        caseids = {}
    return caseids

# 补全await关键字
async def addcaseidtodb(caseid):
    e = await openuseless()
    e[str(caseid)] = {}
    with open("caseids.json", "w") as f:
        json.dump(e, f)
    return True

# 修复ID生成逻辑，全量校验重复
async def id_generator(size=12, chars=string.ascii_uppercase + string.digits):
    existing = await openuseless()
    while True:
        x = ''.join(random.choice(chars) for _ in range(size))
        if x not in existing:
            return x

# 修复历史记录覆盖问题，改用列表存储多条警告
async def createinfraction(user, type, mod, date):
    users = await openinf()
    idgen1 = await id_generator()
    # 新增ID入库逻辑
    await addcaseidtodb(idgen1)
    
    user_id = str(user.id)
    # 用户无记录则初始化列表
    if user_id not in users:
        users[user_id] = []
    # 追加新警告记录
    users[user_id].append({
        "type": type,
        "mod": mod.id,
        "date": date,
        "caseid": idgen1
    })

    with open("infractions.json", "w") as f:
        json.dump(users, f)
    return idgen1

@client.event
async def on_ready():
    print("online")

@client.command(aliases = ["w"])
async def warn(ctx, member : discord.Member = None, *, reason = None):
    if member is None:
        embed = discord.Embed(title = "ERROR", description = "Please specify a valid member.")
        await ctx.send(ctx.author.mention, embed = embed)
    elif reason is None:
        embed = discord.Embed(title = "ERROR", description = "Please specify a reason.")
        await ctx.send(ctx.author.mention, embed = embed)
    else:
        yui = now.strftime("%d/%m/%Y %H:%M:%S")
        # 直接获取生成的Case ID，无需后续遍历查询
        case_id = await createinfraction(member, "Warning", ctx.author, yui)
        embed = discord.Embed(description= f"You have been warned in {ctx.guild} for {reason}.")
        await member.send(embed = embed)
        e = client.get_channel(loggingchannel)
        # 修复日志标题和描述
        embed1 = discord.Embed(title = "Member Warned", description = f"{member} has been warned")
        embed1.add_field(name = "Reason", value = reason)
        embed1.add_field(name = "Moderator", value = ctx.author)
        embed1.add_field(name = "Case ID", value = case_id)
        embed1.add_field(name = "Date", value = yui)
        await e.send(embed=embed1)

内容的提问来源于stack exchange，提问作者boredscripter