python - discord.ext.commands.errors.CommandInvokeError : Command raised an exception: AttributeError: 'NoneType' object has no attribute 'qualified_name'

Question

我正在为我的机器人制作自定义帮助命令，这是我的代码。

class customhelpcommand(commands.HelpCommand):

    def __init__(self):
        super().__init__()
    
    async def send_bot_help(self, mapping):
        for cog in mapping:
            await self.get_destination().send(f"{cog.qualified_name}: {[command.name for command in mapping(cog)]}")
     

    async def send_cog_help(self, cog):
        await self.get_destination().send(f"{cog.qualified_name}: {[command.name for command in cog.get_commands()]}")

Answer 1

您的映射 中的某些齿轮可能是无。因此你可以简单地检查它:

async def send_bot_help(self, mapping):
    for cog in mapping:
        if cog is not None:
            await self.get_destination().send(f"{cog.qualified_name}: {[command.name for command in mapping(cog)]}")