构建一个discord反垃圾邮件机器人并出现错误

Question

对于不和谐机器人和 python 以及构建反垃圾邮件机器人来说非常陌生，这是我的代码：

import discord
from discord.ext import commands
import time

b = commands.Bot(command_prefix='not a bot')
b.remove_command("help")

@b.event
async def on_ready():
    print('Bot is Ready')

authors = {}
authors1 = []
@b.event
async def on_message(ctx):
    global authors
    global authors1
    author_id = ctx.author.id
    for author2 in authors1:
        if author_id == author2:
            authors[author_id] += 1
        else:
            authors[author_id] = 1
            authors1.append(author_id)
    stop = False
    timer = 5
    while stop == False:
        if timer > 0:
            time.sleep(0.985)
            timer -= 1
            if authors[author_id] > 5:
                await ctx.send("Stop Spamming")
        else:
            timer = 5
            authors[author_id] = 0

b.run('stack overflow')

基本上，在每条消息上，它都会获取每个用户的不和谐 ID，然后为其分配一个值，默认值为 1，因为用户刚刚发送了一条消息，其中 while 循环启动是一个计时器，每 5 秒重置一次，如果发送该消息的用户message 已发送 5 条消息，它告诉他们停止发送垃圾邮件，我不知道为什么会收到错误，而且由于我是 python 新手，我可以使任何代码更简单，如果您能让我，我将不胜感激知道。

这是我不断收到的错误

Bot is Ready
Ignoring exception in on_message
Traceback (most recent call last):
  File "C:\Users\12488\AppData\Local\Programs\Python\Python38\lib\site-packages\discord\client.py", line 333, in _run_even
    await coro(*args, **kwargs)
  File "C:\Users\12488\Downloads\Bot\antispam.py", line 31, in on_message
    if authors[author_id] > 5:
KeyError: 234295307759108106

Answer 1

一些东西：

1. 出现错误消息是因为您引用了未设置的author_id
2. 您的变量名称非常混乱，这使得很难理解您的用途。
3. 我觉得你的逻辑有问题。我不知道为什么底部有一个睡眠循环。

无论如何，我认为下面的代码将完成您想要的操作。

import discord
from discord.ext import commands

import datetime
import time

b = commands.Bot(command_prefix='not a bot')
b.remove_command("help")

time_window_milliseconds = 5000
max_msg_per_window = 5
author_msg_times = {}
# Struct:
# {
#    "<author_id>": ["<msg_time>", "<msg_time>", ...],
#    "<author_id>": ["<msg_time>"],
# }


@b.event
async def on_ready():
    print('Bot is Ready')


@b.event
async def on_message(ctx):
    global author_msg_counts

    author_id = ctx.author.id
    # Get current epoch time in milliseconds
    curr_time = datetime.datetime.now().timestamp() * 1000

    # Make empty list for author id, if it does not exist
    if not author_msg_times.get(author_id, False):
        author_msg_times[author_id] = []

    # Append the time of this message to the users list of message times
    author_msg_times[author_id].append(curr_time)

    # Find the beginning of our time window.
    expr_time = curr_time - time_window_milliseconds

    # Find message times which occurred before the start of our window
    expired_msgs = [
        msg_time for msg_time in author_msg_times[author_id]
        if msg_time < expr_time
    ]

    # Remove all the expired messages times from our list
    for msg_time in expired_msgs:
        author_msg_times[author_id].remove(msg_time)
    # ^ note: we probably need to use a mutex here. Multiple threads
    # might be trying to update this at the same time. Not sure though.

    if len(author_msg_times[author_id]) > max_msg_per_window:
        await ctx.send("Stop Spamming")

b.run('stack overflow')