From e733ed24aa5eee18c82931a2935bd73e96d9ceb6 Mon Sep 17 00:00:00 2001
From: Kadir Can Ozden <101993364+bysiber@users.noreply.github.com>
Date: Fri, 20 Feb 2026 10:49:04 +0300
Subject: [PATCH] Fix FrozenInstanceError displaying empty error message in
 tracebacks

---
 src/attr/exceptions.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/attr/exceptions.py b/src/attr/exceptions.py
index 3b7abb815..af7a4782d 100644
--- a/src/attr/exceptions.py
+++ b/src/attr/exceptions.py
@@ -19,6 +19,9 @@ class FrozenError(AttributeError):
     msg = "can't set attribute"
     args: ClassVar[tuple[str]] = [msg]
 
+    def __init__(self):
+        super().__init__(self.msg)
+
 
 class FrozenInstanceError(FrozenError):
     """