add xkcd command

cogs/other.py

@@ -0,0 +1,37 @@
+import discord
+import aiohttp
+import random
+from datetime import datetime
+from discord.ext import commands
+
+
+class OtherCog(commands.Cog):
+    def __init__(self, bot):
+        self.bot = bot
+    
+    @commands.slash_command()
+    async def xkcd(self, ctx: discord.ApplicationContext, *, number: int = None):
+        """Shows an XKCD comic"""
+        async with aiohttp.ClientSession() as session:
+            if number is None:
+                async with session.get("https://c.xkcd.com/random/comic") as response:
+                    if response.status != 302:
+                        number = random.randint(100, 999)
+                    else:
+                        number = int(response['location'].split['/'][-2])
+
+            async with session.get("https://xkcd.com/{!s}/info.0.json".format(number)) as response:
+                if response.status != 200:
+                    return await ctx.respond("Sorry, xkcd.com is unavailable at the moment.")
+                data = await response.json()
+        embed = discord.Embed(
+            title=data["safe_title"],
+            description=data['alt'],
+            color=discord.Colour.embed_background()
+        )
+        embed.set_image(url=data['img'])
+        return await ctx.respond(embed=embed)
+
+
+def setup(bot):
+    bot.add_cog(OtherCog(bot))