From 4c9fa5a5212777f745d7f622a8255e70d07f264d Mon Sep 17 00:00:00 2001
From: Jeong YunWon <jeong@youknowone.org>
Date: Sat, 14 Aug 2021 17:56:17 +0900
Subject: [PATCH] add_slot_wrappers must be called up to once

---
 vm/src/pyobject.rs | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/vm/src/pyobject.rs b/vm/src/pyobject.rs
index dae5a3e60..e405c5141 100644
--- a/vm/src/pyobject.rs
+++ b/vm/src/pyobject.rs
@@ -389,11 +389,9 @@ impl PyContext {
     }
 
     pub fn add_slot_wrappers(&self, ty: &PyTypeRef) {
-        if !ty.attributes.read().contains_key("__new__") {
-            let new_wrapper =
-                self.new_bound_method(self.tp_new_wrapper.clone(), ty.clone().into_object());
-            ty.set_str_attr("__new__", new_wrapper);
-        }
+        let new_wrapper =
+            self.new_bound_method(self.tp_new_wrapper.clone(), ty.clone().into_object());
+        ty.set_str_attr("__new__", new_wrapper);
     }
 
     pub fn is_tp_new_wrapper(&self, obj: &PyObjectRef) -> bool {