How do i make a working slash command in discord.py

Question

I am trying to make a slash command with discord.py I have tried a lot of stuff it doesn't seem to be working. Help would be appreciated.

Answer 1

Note: I will include a version for pycord at the end because I think it's much simpler, also it was the original answer.

---

discord.py version

First make sure that you have the newest version of discord.py installed. In your code, you first import the library:

import discord
from discord import app_commands

and then you define your client and tree:

intents = discord.Intents.default()
client = discord.Client(intents=intents)
tree = app_commands.CommandTree(client)

The tree holds all of your application commands. Then you can define your command:

# Add the guild ids in which the slash command will appear.
# If it should be in all, remove the argument, but note that
# it will take some time (up to an hour) to register the
# command if it's for all guilds.
@tree.command(
    name="commandname",
    description="My first application Command",
    guild=discord.Object(id=12417128931)
)
async def first_command(interaction):
    await interaction.response.send_message("Hello!")

Then you also have to sync your commands to discord once the client is ready, so we do that in the on_ready event:

@client.event
async def on_ready():
    await tree.sync(guild=discord.Object(id=Your guild id))
    print("Ready!")

And at the end we have to run our client:

client.run("token")

---

pycord version

To install py-cord, first run pip uninstall discord.py and then pip install py-cord. Then in your code, first import the library with

import discord
from discord.ext import commands

create your bot with

bot = commands.Bot()

and create your slash command with

# Add the guild ids in which the slash command will appear.
# If it should be in all, remove the argument, but note that
# it will take some time (up to an hour) to register the
# command if it's for all guilds.
@bot.slash_command(
  name="first_slash",
  guild_ids=[...]
)
async def first_slash(ctx): 
    await ctx.respond("You executed the slash command!")

and then run the bot with your token

bot.run(TOKEN)

Answer 2

# This is new in the discord.py 2.0 update

# imports
import discord
import discord.ext

# setting up the bot
intents = discord.Intents.all() 
# if you don't want all intents you can do discord.Intents.default()
client = discord.Client(intents=intents)
tree = discord.app_commands.CommandTree(client)

# sync the slash command to your server
@client.event
async def on_ready():
    await tree.sync(guild=discord.Object(id=Your guild ID here))
    # print "ready" in the console when the bot is ready to work
    print("ready")

# make the slash command
@tree.command(name="name", description="description")
async def slash_command(interaction: discord.Interaction):    
    await interaction.response.send_message("command")

# run the bot
client.run("token")