python - 如何从@commands.has_role()获取 "error"消息

Question

我最近使用discord.py制作了一个discord机器人。我尝试为某些命令授予权限。我有这个测试命令功能:

@client.command()
@commands.has_role('Moderator')
async def cool(ctx):
    await ctx.send("You are cool indeed!")

当用户没有“主持人”角色时，如何返回消息(错误)？

我已经尝试过这个:

async def on_command_error(ctx, error):
    if isinstance(error, commands.NoPrivateMessage):
        await ctx.send("*Private messages.* ")
    elif isinstance(error, commands.MissingRequiredArgument):
        await ctx.send("*Command is missing an argument:* ")
    elif isinstance(error, commands.DisabledCommand):
        await ctx.send("*This command is currenlty disabled. Please try again later.* ")
    elif isinstance(error, commands.CheckFailure):
        await ctx.send("*You do not have the permissions to do this.* ")
    elif isinstance(error, commands.CommandNotFound):
        await ctx.send("*This command is not listed in my dictionary.*")

但我没有从中得到任何返回。

Answer 1

在 on_command_error 函数中，检查 commands.MissingRole或commands.MissingAnyRole .

if isinstance(error, (commands.MissingRole, commands.MissingAnyRole)):
    ...