From 093f12f4414f3f2f98154f9e024ffb8e5cf9b21a Mon Sep 17 00:00:00 2001
From: starlet-dx <15929766099@163.com>
Date: Fri, 4 Aug 2023 10:47:30 +0800
Subject: [PATCH 1/1] Fix build failure

---
 dataclasses.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dataclasses.py b/dataclasses.py
index ddd59c6..c8150ae 100644
--- a/dataclasses.py
+++ b/dataclasses.py
@@ -547,7 +547,7 @@ def _hash_fn(fields):
 def _is_classvar(a_type, typing):
     # This test uses a typing internal class, but it's the best way to
     # test if this is a ClassVar.
-    return type(a_type) is typing._ClassVar
+    return type(a_type) is typing.ClassVar
 
 
 def _is_initvar(a_type, dataclasses):
-- 
2.30.0