From b38355fe5a98982aaf73ac77642e7e50ae113ef7 Mon Sep 17 00:00:00 2001
From: Ignas Anikevicius <240938+aignas@users.noreply.github.com>
Date: Fri, 14 Aug 2026 18:39:30 +0900
Subject: [PATCH 1/2] fix(pypi): do not return rctx.metadata for pip_archive

There was a small regression in #3948 that may affect
experimental repository cache users.

Related to #3791
---
 news/4042.fixed.md                  | 2 ++
 python/private/pypi/whl_library.bzl | 4 +++-
 2 files changed, 5 insertions(+), 1 deletion(-)
 create mode 100644 news/4042.fixed.md

diff --git a/news/4042.fixed.md b/news/4042.fixed.md
new file mode 100644
index 0000000000..35feb31837
--- /dev/null
+++ b/news/4042.fixed.md
@@ -0,0 +1,2 @@
+Previous refactor that shipped with 2.3 introduced regression for the experimental repository cache
+users. This restores the previous behavior ([#3791](https://github.com/bazel-contrib/rules_python/pull/3791)).
diff --git a/python/private/pypi/whl_library.bzl b/python/private/pypi/whl_library.bzl
index 47b05468ef..281dd863e6 100644
--- a/python/private/pypi/whl_library.bzl
+++ b/python/private/pypi/whl_library.bzl
@@ -532,7 +532,9 @@ def _pip_archive_impl(rctx):
     if not rctx.delete("whl_file.json"):
         fail("failed to delete the whl_file.json file")
 
-    return _whl_extract(rctx, whl_path = whl_path, logger = logger, sdist_filename = sdist_filename)
+    # NOTE @aignas 2026-08-14: We never return rctx.metadata for pip archives because the result may
+    # not be reproducible across all machines given the input args to the repository rule.
+    _whl_extract(rctx, whl_path = whl_path, logger = logger, sdist_filename = sdist_filename)
 
 def _remove_files(rctx, *basenames):
     paths = list(rctx.path(".").readdir())

From 33e3bae4fbc2310417aaeb9cc568e981bb4d5ab2 Mon Sep 17 00:00:00 2001
From: Ignas Anikevicius <240938+aignas@users.noreply.github.com>
Date: Fri, 14 Aug 2026 18:46:44 +0900
Subject: [PATCH 2/2] Rename 4042.fixed.md to 4043.fixed.md

---
 news/{4042.fixed.md => 4043.fixed.md} | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename news/{4042.fixed.md => 4043.fixed.md} (100%)

diff --git a/news/4042.fixed.md b/news/4043.fixed.md
similarity index 100%
rename from news/4042.fixed.md
rename to news/4043.fixed.md