Discord bot issue "is a required argument missing" python

Question

I have a problem. I think this code is well written and the bot turns on and everything, but when I go to execute the commad play I get an error.

@bot.command(name='play', aliases=['sing','p'], description="streams music")
async def play_(ctx, self, *, search: str):
    #async def play_(ctx, message, self, *, search: str):
    """Request a song and add it to the queue.
    This command attempts to join a valid voice channel if the bot is not already in one.
    Uses YTDL to automatically search and retrieve a song.
    Parameters
    ------------
    search: str [Required]
        The song to search and retrieve using YTDL. This could be a simple search, an ID or URL.
    """
    await ctx.trigger_typing()

    vc = ctx.voice_client

    if not vc:
        await ctx.invoke(self.connect_)

    player = self.get_player(ctx)

    # If download is False, source will be a dict which will be used later to regather the stream.
    # If download is True, source will be a discord.FFmpegPCMAudio with a VolumeTransformer.
    source = await YTDLSource.create_source(ctx, search, loop=self.bot.loop, download=False)

    await player.queue.put(source)

The error is as follows:

    discord.ext.commands.errors.MissingRequiredArgument: search is a required argument that is missing.

And I don't know what to do because I have already tried to change the position but an error keeps coming out if someone knows what it is, please tell me

Answer 1

Whatever your search parameter is for, it wont work. When the discord.py library calls a command, it calls the command as follows:

command(context, word1, word2, word3)

So if it would call your function, the named error would apper, because discord never passes a search argument to your function. E.g:

@bot.command(name='play', aliases=['sing','p'], description="streams music")
async def play_(ctx, self, *, search: str):
    [...]

-play see you again

play_(context, "see", "you", "again")

-> Error: search is a required argument that is missing

---

Instead, your function should look like the following:

@bot.command(name='play', aliases=['sing','p'], description="streams music")
async def play_(ctx, *search):
    [...]