From 6b0cac5843d0cbfb68391f36397e6759e13e297d Mon Sep 17 00:00:00 2001
From: Ned Batchelder <ned@nedbatchelder.com>
Date: Fri, 3 May 2024 16:42:26 -0400
Subject: [PATCH] perf: cache _human_key to speed html report by about 10%

---
 coverage/misc.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/coverage/misc.py b/coverage/misc.py
index d5d96fb13..af28d7d56 100644
--- a/coverage/misc.py
+++ b/coverage/misc.py
@@ -8,6 +8,7 @@
 import contextlib
 import datetime
 import errno
+import functools
 import hashlib
 import importlib
 import importlib.util
@@ -313,6 +314,7 @@ def import_local_file(modname: str, modfile: str | None = None) -> ModuleType:
     return mod
 
 
+@functools.lru_cache(maxsize=None)
 def _human_key(s: str) -> tuple[list[str | int], str]:
     """Turn a string into a list of string and number chunks.