bot.py 文件源码

def add_cog(self, cog):
        if not isinstance(cog, Cog):
            raise discord.ClientException(f'cog must be an instance of {Cog.__qualname__}')

        # cog aliases
        for alias in cog.__aliases__:
            if alias in self.cog_aliases:
                raise discord.ClientException(f'"{alias}" already has a cog registered')
            self.cog_aliases[alias.lower()] = cog

        super().add_cog(cog)
        cog_name = cog.__class__.__name__
        self.cog_aliases[cog.__class__.name.lower()] = self.cogs[cog_name.lower()] = self.cogs.pop(cog_name)