From 1b7e8b8147b15e4c8d39cf9c40595206c2585941 Mon Sep 17 00:00:00 2001
From: Dmitry <b4tm4n@mail.ru>
Date: Mon, 22 Apr 2024 11:45:32 +0300
Subject: [PATCH] fix stack

---
 mod_oop/3.9_10_stack_iter.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mod_oop/3.9_10_stack_iter.py b/mod_oop/3.9_10_stack_iter.py
index 0a9c719..a6555b8 100644
--- a/mod_oop/3.9_10_stack_iter.py
+++ b/mod_oop/3.9_10_stack_iter.py
@@ -120,7 +120,7 @@ class Stack:
             b, c = a, b
         if c:
             c.next = None
-        if b == self.top:
+        if b is self.top:
             self.top = None
         return b