bot.py 文件源码

def on_command_error(ctx, error):
    if isinstance(error, commands.CommandNotFound):
        return

    # if isinstance(error, commands.CommandInvokeError):
    #   return print(error)

    errors = {
        commands.DisabledCommand: 'Command has been disabled.',
        commands.MissingPermissions: 'Invoker is missing permissions to run this command.',
        commands.BotMissingPermissions: 'Bot is missing permissions to run this command.',
        commands.CheckFailure: 'You are not allowed to run this command.'
    }

    for type, text in errors.items():
        if isinstance(error, type):
            return await ctx.send(errors[type])

    # argument error
    if isinstance(error, commands.UserInputError):
        bot.formatter.context = ctx
        bot.formatter.command = ctx.command
        return await ctx.send(f'Invalid argument(s) provided.\n```{bot.formatter.get_command_signature()}```')

    await ctx.send(f'An error occured in `{ctx.command.name}` invoked by {ctx.message.author}:\n```{error}```')
    #traceback.print_exception(type(exception), exception, exception.__traceback__, file=sys.stderr)

# blacklist check
# check is user is blacklister, or if it's a bot