'Help' 命令使用此函数自动为 commands.group 子命令生成帮助

Question

我试着做一个帮助命令，但我不知道如何为命令组创建帮助命令，这是主命令与组分开的，我试过help modmail channel modmail 是组，channel 是子命令，它只是说命令不存在 这是函数：

Please note that, I'm not asking how to use the commands.group, I'm asking about how can I use my function to create a help for Subcommands on commands.group()

    async def cmdhelp(self, ctx, command):
        params = []
        for key, value in command.params.items():
            if key not in ("self", "ctx"):
                params.append(f"[{key}]" if "NoneType" in str(value) else f"<{key}>")
        params = " ".join(params)
        alias = ", ".join(command.aliases)
        commandhelp = command.help
        commanddesc = command.description
        if not command.help:
            commandhelp = "`None`"
        if not command.description:
            commanddesc = "`None`"
        if not command.aliases:
            alias = "`None`"
        embed = discord.Embed(title=f"Help for {command}",
                              colour=0x59FFE7,
                              description=f"**Description:**\n{commandhelp}\n**Usage:**\n`{command} {params}`\n**Aliases:**\n`{alias}`\n**Permission:**\n`{commanddesc}`")
        await ctx.send(embed=embed)

    @commands.group(invoke_without_command=True)
    async def help(self, ctx, *,cmd=None):
        if cmd is None:
           # lets say this is a embed with a help category list
        else:
            if (command := get(self.bot.commands, name=cmd)):
                await self.cmdhelp(ctx, command)

            else:
                await ctx.send("That command does not exist.")

例子：如果你看到了，它可以与 help modmail 的正常命令一起使用，但是我如何为 modmail 组的 子命令创建？这是 help modmail channel

Answer 1

首先，这不是使用子命令的正确方法。这是如何使用它们：

client.remove_command("help")

@client.group()
async def main_cmd(ctx):
    print("main command")

@main_cmd.command()
async def sub_cmd(ctx):
    print("subcommand")

在 discord 中说 main_cmd 只会打印 "main command"，但在 discord 中说 main_cmd sub_cmd 会打印 "main command" 然后是 "subcommand".

如果调用子命令时不希望原始命令运行，请使用 ctx.invoked_subcommand:

client.remove_command("help")

@client.group()
async def main_cmd(ctx):
    if ctx.invoked_subcommand != None:
        return
    print("main command")

@main_cmd.command()
async def sub_cmd(ctx):
    print("subcommand")

编辑（编辑问题后）：要为机器人中的每个命令创建“命令”（它不会真的是命令），请使用 bot.commands:

client.remove_command("help")

@client.command(description = "THIS IS THE MESSAGE THAT WILL APPEAR IN THE SPECIFIC HELP COMMAND")
async def a_command(ctx):
    pass #look at the decorator

@client.command()
async def help(ctx, cmd = None):
    if cmd == None:
        await ctx.send("DEFAULT HELP")
    elif cmd in (cmds := {command.name: command for command in client.commands}):
        await ctx.send("cmd: " + cmds[cmd].description)
    else:
        await ctx.send("command not found")

这会为机器人中的每个命令创建“子命令”。

'Help' 命令使用此函数自动为 commands.group 子命令生成帮助

an 'Help' commands that auto generate a help for a commands.group subcommand using this function

python

discord

discord.py

discord.py-rewrite