From 1ba0bb21ed4eb54023fdfccc9cb20be8fff946b1 Mon Sep 17 00:00:00 2001
From: "Jason R. Coombs" <jaraco@jaraco.com>
Date: Sun, 23 Jun 2024 13:06:07 -0400
Subject: [PATCH] gh-120910: Fix issue resolving relative paths outside
 site-packages. (#120911)

Incorporates changes from importlib_metadata 7.2.1.
---
 Lib/importlib/metadata/__init__.py            |  2 +-
 Lib/test/test_importlib/metadata/fixtures.py  | 34 +++++++++++++++++++
 Lib/test/test_importlib/metadata/test_api.py  |  1 +
 ...-06-23-11-21-27.gh-issue-120910.t0QXdB.rst |  2 ++
 4 files changed, 38 insertions(+), 1 deletion(-)
 create mode 100644 Misc/NEWS.d/next/Library/2024-06-23-11-21-27.gh-issue-120910.t0QXdB.rst

diff --git a/Lib/importlib/metadata/__init__.py b/Lib/importlib/metadata/__init__.py
index 245f905737c..8ce62dd864f 100644
--- a/Lib/importlib/metadata/__init__.py
+++ b/Lib/importlib/metadata/__init__.py
@@ -567,7 +567,7 @@ class Distribution(DeprecatedNonAbstract):
         paths = (
             (subdir / name)
             .resolve()
-            .relative_to(self.locate_file('').resolve())
+            .relative_to(self.locate_file('').resolve(), walk_up=True)
             .as_posix()
             for name in text.splitlines()
         )
diff --git a/Lib/test/test_importlib/metadata/fixtures.py b/Lib/test/test_importlib/metadata/fixtures.py
index 81ff678f286..826b1b3259b 100644
--- a/Lib/test/test_importlib/metadata/fixtures.py
+++ b/Lib/test/test_importlib/metadata/fixtures.py
@@ -234,6 +234,40 @@ class EggInfoPkgPipInstalledNoToplevel(OnSysPath, SiteBuilder):
     }
 
 
+class EggInfoPkgPipInstalledExternalDataFiles(OnSysPath, SiteBuilder):
+    files: FilesSpec = {
+        "egg_with_module_pkg.egg-info": {
+            "PKG-INFO": "Name: egg_with_module-pkg",
+            # SOURCES.txt is made from the source archive, and contains files
+            # (setup.py) that are not present after installation.
+            "SOURCES.txt": """
+                egg_with_module.py
+                setup.py
+                egg_with_module.json
+                egg_with_module_pkg.egg-info/PKG-INFO
+                egg_with_module_pkg.egg-info/SOURCES.txt
+                egg_with_module_pkg.egg-info/top_level.txt
+            """,
+            # installed-files.txt is written by pip, and is a strictly more
+            # accurate source than SOURCES.txt as to the installed contents of
+            # the package.
+            "installed-files.txt": """
+                ../../../etc/jupyter/jupyter_notebook_config.d/relative.json
+                /etc/jupyter/jupyter_notebook_config.d/absolute.json
+                ../egg_with_module.py
+                PKG-INFO
+                SOURCES.txt
+                top_level.txt
+            """,
+            # missing top_level.txt (to trigger fallback to installed-files.txt)
+        },
+        "egg_with_module.py": """
+            def main():
+                print("hello world")
+            """,
+    }
+
+
 class EggInfoPkgPipInstalledNoModules(OnSysPath, SiteBuilder):
     files: FilesSpec = {
         "egg_with_no_modules_pkg.egg-info": {
diff --git a/Lib/test/test_importlib/metadata/test_api.py b/Lib/test/test_importlib/metadata/test_api.py
index 7d267564f0f..2256e0c502e 100644
--- a/Lib/test/test_importlib/metadata/test_api.py
+++ b/Lib/test/test_importlib/metadata/test_api.py
@@ -29,6 +29,7 @@ class APITests(
     fixtures.EggInfoPkg,
     fixtures.EggInfoPkgPipInstalledNoToplevel,
     fixtures.EggInfoPkgPipInstalledNoModules,
+    fixtures.EggInfoPkgPipInstalledExternalDataFiles,
     fixtures.EggInfoPkgSourcesFallback,
     fixtures.DistInfoPkg,
     fixtures.DistInfoPkgWithDot,
diff --git a/Misc/NEWS.d/next/Library/2024-06-23-11-21-27.gh-issue-120910.t0QXdB.rst b/Misc/NEWS.d/next/Library/2024-06-23-11-21-27.gh-issue-120910.t0QXdB.rst
new file mode 100644
index 00000000000..3773cdc6ee3
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2024-06-23-11-21-27.gh-issue-120910.t0QXdB.rst
@@ -0,0 +1,2 @@
+When reading installed files from an egg, use ``relative_to(walk_up=True)``
+to honor files installed outside of the installation root.