From 80b67a9c4c9bcbfb8a05a5311e269ae3bd55eec7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dani=C3=ABl=20van=20Noord?=
 <13665637+DanielNoord@users.noreply.github.com>
Date: Thu, 3 Mar 2022 00:55:35 +0100
Subject: Use functools.cached_property for 3.8+ (#1417)

---
 astroid/objects.py | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

(limited to 'astroid/objects.py')

diff --git a/astroid/objects.py b/astroid/objects.py
index 76ade71d..56fbcd7a 100644
--- a/astroid/objects.py
+++ b/astroid/objects.py
@@ -22,8 +22,10 @@ leads to an inferred FrozenSet:
     Call(func=Name('frozenset'), args=Tuple(...))
 """
 
+import sys
+from typing import TYPE_CHECKING
 
-from astroid import bases, decorators, util
+from astroid import bases, util
 from astroid.exceptions import (
     AttributeInferenceError,
     InferenceError,
@@ -35,6 +37,11 @@ from astroid.nodes import node_classes, scoped_nodes
 
 objectmodel = util.lazy_import("interpreter.objectmodel")
 
+if sys.version_info >= (3, 8) or TYPE_CHECKING:
+    from functools import cached_property
+else:
+    from astroid.decorators import cachedproperty as cached_property
+
 
 class FrozenSet(node_classes.BaseContainer):
     """class representing a FrozenSet composite node"""
@@ -45,7 +52,7 @@ class FrozenSet(node_classes.BaseContainer):
     def _infer(self, context=None):
         yield self
 
-    @decorators.cachedproperty
+    @cached_property
     def _proxied(self):  # pylint: disable=method-hidden
         ast_builtins = AstroidManager().builtins_module
         return ast_builtins.getattr("frozenset")[0]
@@ -114,7 +121,7 @@ class Super(node_classes.NodeNG):
         index = mro.index(self.mro_pointer)
         return mro[index + 1 :]
 
-    @decorators.cachedproperty
+    @cached_property
     def _proxied(self):
         ast_builtins = AstroidManager().builtins_module
         return ast_builtins.getattr("super")[0]
@@ -218,7 +225,7 @@ class ExceptionInstance(bases.Instance):
     the case of .args.
     """
 
-    @decorators.cachedproperty
+    @cached_property
     def special_attributes(self):
         qname = self.qname()
         instance = objectmodel.BUILTIN_EXCEPTIONS.get(
-- 
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