From: Michael Fladischer <FladischerMichael@fladi.at>
Date: Thu, 3 Nov 2022 19:50:17 +0000
Subject: Use local objects.inv in intersphinx mapping.

---
 docs/conf.py | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/docs/conf.py b/docs/conf.py
index 467a8bb..1ea9515 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -6,6 +6,7 @@
 import os
 import re
 import sys
+import django
 from datetime import datetime
 
 
@@ -91,7 +92,23 @@ texinfo_documents = [
 ]
 
 # Example configuration for intersphinx: refer to the Python standard library.
-intersphinx_mapping = {
-    'python': ('https://docs.python.org/3', None),
-    'django': ('https://docs.djangoproject.com/en/dev/', 'https://docs.djangoproject.com/en/dev/_objects/'),
-}
+def check_object_path(key, url, path):
+    if os.path.isfile(path):
+        return {key: (url, path)}
+    return {}
+
+intersphinx_mapping = {}
+intersphinx_mapping.update(
+    check_object_path(
+        'python',
+        'https://docs.python.org/' + '.'.join([str(x) for x in sys.version_info[0:2]]),
+        '/usr/share/doc/python' + '.'.join([str(x) for x in sys.version_info[0:2]]) + '/html/objects.inv'
+    )
+)
+intersphinx_mapping.update(
+    check_object_path(
+        'django',
+        'https://docs.djangoproject.com/en/' + django.get_version() + '/',
+        '/usr/share/doc/python-django-doc/html/objects.inv'
+    )
+)