A kinda advanced custom "help" command for your Discord.py Rewrite bots!

helpcommand.py

"""This custom help command is a perfect replacement for the default one on any Discord Bot written in Discord.py Rewrite!
However, you must put "bot.remove_command('help')" in your bot, and the command must be in a cog for it to work.

Written by Jared Newsom (AKA Jared M.F.), edited by Leon Peter Keates (AKA Leon P.K.)"""

@commands.command()
    @commands.has_permissions(add_reactions=True, embed_links=True)
    async def help(self,ctx,*cog):
        """Gets all cogs and commands of mine."""
        try:
            if not cog:
                halp=discord.Embed(title='Cog Listing and Uncatergorized Commands', description='Use `m!help *cog*` to find out more about them!\n(BTW, the Cog Name Must Be in Title Case, Just Like this Sentence.)')
            cogs_desc = ''
            for x in self.bot.cogs:
                cogs_desc += ('{} - {}'.format(x,self.bot.cogs[x].__doc__)+'\n')                
                halp.add_field(name='Cogs',value=cogs_desc[0:len(cogs_desc)-1],inline=False)
                cmds_desc = ''
            for y in self.bot.walk_commands():
                if not y.cog_name and not y.hidden:
                    cmds_desc += ('{} - {}'.format(y.name,y.help)+'\n')
                    halp.add_field(name='Uncatergorized Commands',value=cmds_desc[0:len(cmds_desc)-1],inline=False)
                    await ctx.message.add_reaction(emoji='✉')
                await ctx.message.author.send('',embed=halp)
            else:
                if len(cog) > 1:
                    halp = discord.Embed(title='Error!',description='That is way too many cogs!',color=discord.Color.red())
                    await ctx.message.author.send('',embed=halp)
                else:
                    found = False
                    for x in self.bot.cogs:
                        for y in cog:
                            if x == y:
                                halp=discord.Embed(title=cog[0]+' Command Listing',description=self.bot.cogs[cog[0]].__doc__)
                                for c in self.bot.get_cog(y).get_commands():
                                    if not c.hidden:
                                        halp.add_field(name=c.name,value=c.help,inline=False)
                            found = True
                if not found:
                    halp = discord.Embed(title='Error!',description='How do you even use "'+cog[0]+'"?',color=discord.Color.red())
                else:
                    await ctx.message.add_reaction(emoji='✉')
                await ctx.message.author.send('',embed=halp)
        except:
            pass