Hey there! Let's break down what's going wrong and get your scheduled background task working properly.

Why You're Seeing That Error #

The RuntimeWarning: coroutine 'sometask' was never awaited happens because:

• You defined an async function (sometask) but never actually started it. Discord.py's background tasks need to be registered and launched properly with the library's task system.
• Your code has a few syntax/setup issues (like invalid time definitions) that are preventing the task from running as intended.

Step-by-Step Fix & Correct Implementation #

Here's the revised code with clear explanations:

1. Import Required Modules #

Make sure you have all necessary imports at the top of your file:

import discord
import datetime
from discord.ext import tasks, commands

2. Initialize Your Bot/Client #

Don't forget to enable the necessary intents (you'll need message send permissions at minimum):

# Enable intents - adjust based on your bot's needs
intents = discord.Intents.default()
intents.message_content = True

client = commands.Bot(command_prefix="!", intents=intents)

3. Define Your Scheduled Task #

We'll use discord.py's @tasks.loop() system, and handle the scheduled time correctly (note: discord.utils.sleep_until uses UTC time, so adjust your target time accordingly):

# Define your target time in UTC (adjust hours/minutes to your desired UTC time)
TARGET_TIME = datetime.time(hour=21, minute=20, tzinfo=datetime.timezone.utc)

async def get_next_run_time():
    """Calculate the next time the task should run (handles if current time is past target)"""
    now = datetime.datetime.now(datetime.timezone.utc)
    next_run = datetime.datetime.combine(now.date(), TARGET_TIME, tzinfo=datetime.timezone.utc)
    
    # If current time is already past today's target, schedule for tomorrow
    if now > next_run:
        next_run += datetime.timedelta(days=1)
    return next_run

@tasks.loop(count=None)  # Infinite loop to run daily
async def sometask():
    # Get the channel - make sure the bot has access to it
    valid_channel = client.get_channel(814734276439441461)
    if not valid_channel:
        print("Could not find the target channel!")
        return
    
    # Send your scheduled message
    await valid_channel.send("It's time!")
    print("Task executed successfully")
    
    # Wait until the next scheduled time
    next_run = await get_next_run_time()
    await discord.utils.sleep_until(next_run)

4. Start the Task When the Bot is Ready #

Launch the task only after the bot has fully connected to Discord (otherwise, get_channel might return None):

@client.event
async def on_ready():
    print(f"Logged in as {client.user}")
    # Start the scheduled task
    await sometask.start()

5. Run Your Bot #

Don't forget to add your bot token at the end:

client.run("YOUR_BOT_TOKEN_HERE")

Key Notes to Remember #

• Time Zones: Discord.py's sleep_until uses UTC. If you want to use your local time, convert it to UTC first (e.g., if your local time is 3:48 PM UTC+5, that's 10:48 AM UTC).
• Channel Access: Ensure your bot has the SendMessages permission in the target channel, and that the channel ID is correct.
• Task Management: If you need to stop the task later, you can use sometask.stop() in another command or event.

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