Python 3.6 Discord Bot状态命令：冷却与执行反馈提示问题

Hey there! Let's fix those missing feedback messages for your /status command. The issue is twofold: you're not sending a success message after updating the status, and you haven't set up error handling for the cooldown. Here's how to fix both:

First, your original function was missing the ctx (context) parameter—this is critical for sending messages back to the channel where the command was used. We'll add that, plus a tailored success message based on whether the user provided a status or not:

@client.command(name="status")
@commands.cooldown(1, 15, commands.BucketType.server)
async def client_status(ctx, *, status: str = None):
    """Change the bot's 'playing' status. Running this command without any arguments will turn the 'playing' status off"""
    game = Game(name=status)
    await client.change_presence(game=game)
    
    # Send confirmation to the user
    if status:
        await ctx.send(f"Successfully updated my playing status to: *{status}*")
    else:
        await ctx.send("Successfully turned off my playing status!")

The if/else check ensures the user gets a specific, clear confirmation depending on their input.

Discord.py raises a CommandOnCooldown exception when a user hits the cooldown limit. We need to catch this exception and send a friendly message with the remaining time:

Add this error handler right below your command function:

@client_status.error
async def client_status_error(ctx, error):
    if isinstance(error, commands.CommandOnCooldown):
        # Round the remaining time to make it look cleaner
        remaining_time = round(error.retry_after, 1)
        await ctx.send(f"Slow down! You can use this command again in *{remaining_time} seconds*.")
    # Re-raise other errors to help with debugging (optional but useful)
    else:
        raise error

This decorator links the error handler directly to your /status command. We check if the error is a cooldown issue, then format and send the remaining time to the user.

Putting it all together, your complete code will look like this:

from discord.ext import commands
from discord import Game

@client.command(name="status")
@commands.cooldown(1, 15, commands.BucketType.server)
async def client_status(ctx, *, status: str = None):
    """Change the bot's 'playing' status. Running this command without any arguments will turn the 'playing' status off"""
    game = Game(name=status)
    await client.change_presence(game=game)
    
    # Send success confirmation
    if status:
        await ctx.send(f"Successfully updated my playing status to: *{status}*")
    else:
        await ctx.send("Successfully turned off my playing status!")

@client_status.error
async def client_status_error(ctx, error):
    if isinstance(error, commands.CommandOnCooldown):
        remaining_time = round(error.retry_after, 1)
        await ctx.send(f"Slow down! You can use this command again in *{remaining_time} seconds*.")
    else:
        raise error

• The ctx parameter is essential for interacting with the server/channel where the command was run—never forget it in your command functions!
• The *, in the parameters lets users input multi-word statuses (like /status Playing Minecraft) without needing to wrap the text in quotes.
• Rounding the cooldown time makes the message feel more polished instead of showing a long, messy float value.

内容的提问来源于stack exchange，提问作者Lukim