如何错误处理 discord.py 中的 spotify 命令？

Question

@commands.command()
async def spotify(self, ctx, user: discord.Member = None):

    if user == None:
        user = ctx.author
        pass
    if user.activities:
        for activity in user.activities:
            if isinstance(activity, Spotify)== True:
                embed = discord.Embed(
                    title=f"{user.name}'s Spotify",
                    description="Listening to {}".format(activity.title),
                    color=activity.colour)
                duration = str(activity.duration)
                finalduration = duration[3:7]
                embed.set_thumbnail(url=activity.album_cover_url)
                embed.add_field(name="Artist", value=activity.artist)
                embed.add_field(name="Album", value=activity.album)
                embed.add_field(name="Song Duration", value=finalduration)
                embed.set_footer(text="Song started at {}".format(activity.created_at.strftime("%H:%M.%p")))
                embed.url = (f"https://open.spotify.com/embed/track/{activity.track_id}")
                await ctx.send(embed=embed)

this is my spotify command and although it works fine I cant figure out how to error handle it.

For example, if the user is not listening to Spotify I want to make it send a message like "You are not listening to Spotify"

Any help is appreciated :)

Answer 1

First of all welcome to stack overflow.Maybe try something like

for activity in user.activities:
     if activity!= spotify :
         await ctx.send("You are not listening to Spotify ")
         break

Answer 2

Just add await ctx.send("You are not listening to Spotify ") at the end of your command, and add a return statement at the end of your if instance(activity, Spotify) == True statement. It will exit once it finds what the user is listening and sends the embeded message, and otherwise it will keep going to the end and send You are not listening to spotify

intents = discord.Intents().all()
client = commands.Bot(command_prefix='.', intents=intents)

@client.command(pass_context=True)
async def spotify(ctx, user: discord.Member = None):
    if user == None:
        user = ctx.author
        pass
    if user.activities:
        for activity in user.activities:
            if str(activity).lower() == "spotify":
                embed = discord.Embed(
                    title=f"{user.name}'s Spotify",
                    description="Listening to {}".format(activity.title),
                    color=activity.colour)
                duration = str(activity.duration)
                finalduration = duration[3:7]
                embed.set_thumbnail(url=activity.album_cover_url)
                embed.add_field(name="Artist", value=activity.artist)
                embed.add_field(name="Album", value=activity.album)
                embed.add_field(name="Song Duration", value=finalduration)
                embed.set_footer(text="Song started at {}".format(activity.created_at.strftime("%H:%M.%p")))
                embed.url = (f"https://open.spotify.com/embed/track/{activity.track_id}")
                await ctx.send(embed=embed)
                return
    await ctx.send("User is not doing anything")
    return 

Note: I modify the if isinstance(activity, Spotify)== True: in my code because it wasn't working for me, but you can keep it since you said it was working for you.