From fa60e51243c56e6658a91ea63be67a42e22f1512 Mon Sep 17 00:00:00 2001
From: Numerlor <25886452+Numerlor@users.noreply.github.com>
Date: Mon, 6 Jul 2020 21:23:41 +0200
Subject: Intern `group_names`

---
 bot/cogs/doc.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/bot/cogs/doc.py b/bot/cogs/doc.py
index b288a92b1..0975285e8 100644
--- a/bot/cogs/doc.py
+++ b/bot/cogs/doc.py
@@ -2,6 +2,7 @@ import asyncio
 import functools
 import logging
 import re
+import sys
 import textwrap
 from collections import OrderedDict
 from contextlib import suppress
@@ -210,7 +211,9 @@ class Doc(commands.Cog):
                 if "/" in symbol:
                     continue  # skip unreachable symbols with slashes
                 absolute_doc_url = base_url + relative_doc_url
-                group_name = group.split(":")[1]
+                # Intern the group names since they're reused in all the DocItems
+                # to remove unnecessary memory consumption from them being unique objects
+                group_name = sys.intern(group.split(":")[1])
 
                 if symbol in self.inventories:
                     symbol_base_url = self.inventories[symbol].url.split("/", 3)[2]
-- 
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