From 81b0218e390e36aa2c3d1bdaa124d8af175e9cbb Mon Sep 17 00:00:00 2001
From: Li Zhou <li.zhou@windriver.com>
Date: Thu, 2 Apr 2026 15:44:18 +0800
Subject: [PATCH] Not use functions from pkg_resources any more

The python3 setuptools 82 dropped pkg_resources module by now.
To avoid the failure "No module named 'pkg_resources'", replace the
functions from this module with other functions from modules
packaging and importlib.metadata.

Upstream-Status: Inactive-Upstream [lastcommit: 2023]
Signed-off-by: Li Zhou <li.zhou@windriver.com>
---
 ptr/__init__.py | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/ptr/__init__.py b/ptr/__init__.py
index 41192fa..5186059 100644
--- a/ptr/__init__.py
+++ b/ptr/__init__.py
@@ -10,10 +10,12 @@ import operator as _operator
 import itertools as _itertools
 import warnings as _warnings
 
-import pkg_resources
 import setuptools.command.test as orig
 from setuptools import Distribution
 
+from importlib.metadata import version
+from packaging.version import Version
+from packaging.markers import Marker, InvalidMarker
 
 @_contextlib.contextmanager
 def _save_argv(repl=None):
@@ -121,7 +123,8 @@ class PyTest(orig.test):
         instead of declaring the dependency in the package
         metadata, assert the requirement at run time.
         """
-        pkg_resources.require('setuptools>=27.3')
+        if Version(version('setuptools')) < Version('27.3'):
+            raise RuntimeError("setuptools >= 27.3 is required")
 
     def finalize_options(self):
         if self.addopts:
@@ -133,11 +136,12 @@ class PyTest(orig.test):
         Given an environment marker, return True if the marker is valid
         and matches this environment.
         """
-        return (
-            not marker
-            or not pkg_resources.invalid_marker(marker)
-            and pkg_resources.evaluate_marker(marker)
-        )
+        if not marker:
+            return True
+        try:
+            return Marker(marker).evaluate()
+        except InvalidMarker:
+            return False
 
     def install_dists(self, dist):
         """
@@ -175,9 +179,8 @@ class PyTest(orig.test):
             "please upgrade to setuptools 30.4 or later or pin to "
             "pytest-runner < 5."
         )
-        ver_str = pkg_resources.get_distribution('setuptools').version
-        ver = pkg_resources.parse_version(ver_str)
-        if ver < pkg_resources.parse_version('30.4'):
+        ver = Version(version('setuptools'))
+        if ver < Version('30.4'):
             _warnings.warn(msg)
 
     def run(self):
-- 
2.34.1