Move XKCD to it's own extension.

Pipfile

@@ -3,8 +3,8 @@ url = "https://pypi.python.org/simple"
 verify_ssl = true
 name = "pypi"
 
-[packages] 
-discord-py = {git = "https://github.com/Rapptz/discord.py",ref = "3f06f24"}
+[packages]
+"discord.py" = {git = "https://github.com/Rapptz/discord.py",ref = "3f06f24"}
 python-dateutil = ">=2.6"
 asyncpg = ">=0.13"
 python-levenshtein = ">=0.12"
@@ -17,6 +17,7 @@ numpy = "*"
 pendulum = "*"
 pytz = "*"
 matplotlib = "*"
+async_timeout = "~=3.0"
 
 [requires]
 python_version = "3.6"

eevee/cogs/public_tests/cog.py

@@ -418,15 +418,3 @@ async def vote(self, ctx, title, *, content):
         await asyncio.sleep(0.5)
         await msg.add_reaction(dv)
         await ctx.message.delete()
-
-    @command()
-    async def xkcd(self, ctx, comic_number: int = None):
-        url_num = f"{comic_number}/" if comic_number else ""
-        url = f"https://xkcd.com/{url_num}info.0.json"
-        async with async_timeout.timeout(10):
-            async with ctx.bot.session.get(url) as response:
-                xkcd_data = await response.json()
-        title = (f"{xkcd_data['safe_title']} - "
-                 f"{xkcd_data['num']} - "
-                 f"{xkcd_data['year']}/{xkcd_data['month']}/{xkcd_data['day']}")
-        await ctx.embed(title, footer=xkcd_data['alt'], image=xkcd_data['img'])