From 46d7c0ad680cf73a9014e6b7669c22346f64c912 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Randy=20D=C3=B6ring?=
 <30527984+radoering@users.noreply.github.com>
Date: Fri, 19 Jun 2026 10:08:27 +0200
Subject: [PATCH] perf: avoid building a Path object for each record entry

Splitting record entry paths by "/" should be safe because path separators are normalized in `parse_record_file`.
---
 src/installer/_core.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/installer/_core.py b/src/installer/_core.py
index e23f06e..a33011b 100644
--- a/src/installer/_core.py
+++ b/src/installer/_core.py
@@ -3,7 +3,6 @@
 import posixpath
 import warnings
 from io import BytesIO
-from pathlib import Path
 from typing import cast
 
 from installer.destinations import WheelDestination
@@ -102,7 +101,7 @@ def install(
         if path == record_file_path:
             continue
 
-        if "__pycache__" in Path(path).parts[:-1]:
+        if "__pycache__" in path.split("/")[:-1]:
             warnings.warn(
                 (
                     f"Skip installing {path} from {source.distribution}."