From 07d2b13c57977fe895da9ed84b0c38dac8a516f6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Filipe=20La=C3=ADns?= <lains@riseup.net>
Date: Sun, 15 Dec 2024 19:59:08 +0000
Subject: [PATCH 1/2] GH-66409: check if exec_prefix is the same as prefix
 before searching executable_dir
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Filipe Laíns <lains@riseup.net
---
 Modules/getpath.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Modules/getpath.py b/Modules/getpath.py
index b14f985a0d5f97..fc4f7143370cf3 100644
--- a/Modules/getpath.py
+++ b/Modules/getpath.py
@@ -621,6 +621,8 @@ def search_up(prefix, *landmarks, test=isfile):
             # gh-100320: Our PYDs are assumed to be relative to the Lib directory
             # (that is, prefix) rather than the executable (that is, executable_dir)
             exec_prefix = prefix
+        if not exec_prefix and prefix and isdir(joinpath(prefix, PLATSTDLIB_LANDMARK)):
+            exec_prefix = prefix
         if not exec_prefix and executable_dir:
             exec_prefix = search_up(executable_dir, PLATSTDLIB_LANDMARK, test=isdir)
         if not exec_prefix and EXEC_PREFIX:

From d456359f3f925b41821036b9fe73e163728dc9c0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Filipe=20La=C3=ADns?= <lains@riseup.net>
Date: Sun, 15 Dec 2024 21:11:31 +0000
Subject: [PATCH 2/2] Add news
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Filipe Laíns <lains@riseup.net
---
 .../2024-12-15-21-11-26.gh-issue-66409.wv109z.rst              | 3 +++
 1 file changed, 3 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Core_and_Builtins/2024-12-15-21-11-26.gh-issue-66409.wv109z.rst

diff --git a/Misc/NEWS.d/next/Core_and_Builtins/2024-12-15-21-11-26.gh-issue-66409.wv109z.rst b/Misc/NEWS.d/next/Core_and_Builtins/2024-12-15-21-11-26.gh-issue-66409.wv109z.rst
new file mode 100644
index 00000000000000..0d70ad06c97968
--- /dev/null
+++ b/Misc/NEWS.d/next/Core_and_Builtins/2024-12-15-21-11-26.gh-issue-66409.wv109z.rst
@@ -0,0 +1,3 @@
+During the :ref:`path initialization <sys-path-init>`, we now check if
+``base_exec_prefix`` is the same as ``base_prefix`` before falling back to
+searching the Python interpreter directory.