lagbot.py 文件源码

def command_prefix(bot, message):
    """Custom prefix function for guild-specific prefixes."""
    default = config.prefix
    if message.guild is None:
        return default
    settings = await bot.get_guild_prefix(message.guild.id)
    if settings is None:
        return commands.when_mentioned_or(default)(bot, message)
    if settings['prefix'] is None:
        print('prefix is None')
        return commands.when_mentioned(bot, message)
    valid = [settings['prefix']]
    if settings['allow_default']:
        if isinstance(default, (tuple, list)):
            valid.extend(default)
        else:
            valid.append(default)
    valid.sort(reverse=True)
    return commands.when_mentioned_or(*valid)(bot, message)