From 33e2af486882663dd8497849f90f2f53656ba510 Mon Sep 17 00:00:00 2001
From: cloudyun888 <15502132060@163.com>
Date: Wed, 15 Apr 2026 21:22:04 +0800
Subject: [PATCH] fix(lib): prevent memory leak by removing TypeVar subscript
 in construct_type_unchecked

Pydantic model_rebuild fails for TypeVar-subscripted generics like ParsedResponse[TextFormatT]
because TextFormatT is unresolved at runtime. This causes model_rebuild(raise_errors=False)
to return False on every call, preventing _built_memo caching and allocating a new
SchemaValidator/SchemaSerializer on every parse_response() call.

Fix: use non-parameterized base classes (ParsedResponseOutputText, ParsedResponseOutputMessage,
ParsedResponse) which Pydantic can resolve at runtime.

Fixes #3084
---
 src/openai/lib/_parsing/_responses.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/openai/lib/_parsing/_responses.py b/src/openai/lib/_parsing/_responses.py
index 8853a0749f..d198d73c24 100644
--- a/src/openai/lib/_parsing/_responses.py
+++ b/src/openai/lib/_parsing/_responses.py
@@ -78,7 +78,7 @@ def parse_response(
 
             output_list.append(
                 construct_type_unchecked(
-                    type_=ParsedResponseOutputMessage[TextFormatT],
+                    type_=ParsedResponseOutputMessage,
                     value={
                         **output.to_dict(),
                         "content": content_list,
@@ -130,7 +130,7 @@ def parse_response(
             output_list.append(output)
 
     return construct_type_unchecked(
-        type_=ParsedResponse[TextFormatT],
+        type_=ParsedResponse,
         value={
             **response.to_dict(),
             "output": output_list,