File gh-pr-1935_importlib.patch of Package python-django-haystack

From da4651508e5d79e889fa2a7db5c0e40418703498 Mon Sep 17 00:00:00 2001
From: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>
Date: Fri, 12 Jan 2024 23:12:29 +0100
Subject: [PATCH] Migrate away from pkg_resources

Using pkg_resources as an API is deprecated.
Migrate functionality to their importlib and packaging equivalents.

Signed-off-by: Georg Pfuetzenreuter <mail@georg-pfuetzenreuter.net>
---
 haystack/__init__.py                          | 13 +++++++------
 test_haystack/solr_tests/test_solr_backend.py |  4 ++--
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/haystack/__init__.py b/haystack/__init__.py
index 94b8f4674..25448de96 100644
--- a/haystack/__init__.py
+++ b/haystack/__init__.py
@@ -1,7 +1,9 @@
+from importlib.metadata import PackageNotFoundError, version
+
 import django
 from django.conf import settings
 from django.core.exceptions import ImproperlyConfigured
-from pkg_resources import DistributionNotFound, get_distribution, parse_version
+from packaging.version import Version
 
 from haystack.constants import DEFAULT_ALIAS
 from haystack.utils import loading
@@ -9,12 +11,11 @@
 __author__ = "Daniel Lindsley"
 
 try:
-    pkg_distribution = get_distribution("django-haystack")
-    __version__ = pkg_distribution.version
-    version_info = pkg_distribution.parsed_version
-except DistributionNotFound:
+    __version__ = version("django-haystack")
+    version_info = Version(__version__)
+except PackageNotFoundError:
     __version__ = "0.0.dev0"
-    version_info = parse_version(__version__)
+    version_info = Version(__version__)
 
 
 if django.VERSION < (3, 2):
diff --git a/test_haystack/solr_tests/test_solr_backend.py b/test_haystack/solr_tests/test_solr_backend.py
index d20347e7e..d8c95d329 100644
--- a/test_haystack/solr_tests/test_solr_backend.py
+++ b/test_haystack/solr_tests/test_solr_backend.py
@@ -10,7 +10,7 @@
 from django.conf import settings
 from django.test import TestCase
 from django.test.utils import override_settings
-from pkg_resources import parse_version
+from packaging.version import Version
 
 from haystack import connections, indexes, reset_search_queries
 from haystack.exceptions import SkipDocument
@@ -1650,7 +1650,7 @@ def test_boost(self):
 
 
 @unittest.skipIf(
-    parse_version(pysolr.__version__) < parse_version("3.1.1"),
+    Version(pysolr.__version__) < Version("3.1.1"),
     "content extraction requires pysolr > 3.1.1",
 )
 class LiveSolrContentExtractionTestCase(TestCase):