From 84446f5ad8f273d282ab72bc16b6982269d661ee Mon Sep 17 00:00:00 2001
From: Luka Aladashvili <115102487+llukito@users.noreply.github.com>
Date: Tue, 10 Feb 2026 17:08:39 +0400
Subject: [PATCH] refactor: replace bare except with BaseException in
 AsyncQueue (#6765)

## Description
Replaced a bare `except:` with `except BaseException:` in
`libs/langgraph/langgraph/_internal/_queue.py`.

## Motivation
Using a bare `except:` violates PEP 8 (E722). While functionally
equivalent to `except BaseException:`, making it explicit improves code
readability and satisfies static analysis tools.

This ensures that `asyncio.CancelledError` (which inherits from
`BaseException`) is still caught and handled correctly by the
cancellation logic in the `wait()` method, but without the ambiguity of
a bare except.
---
 libs/langgraph/langgraph/_internal/_queue.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/langgraph/langgraph/_internal/_queue.py b/libs/langgraph/langgraph/_internal/_queue.py
index a7e48c486..b2cc02a77 100644
--- a/libs/langgraph/langgraph/_internal/_queue.py
+++ b/libs/langgraph/langgraph/_internal/_queue.py
@@ -25,7 +25,7 @@ class AsyncQueue(asyncio.Queue):
             self._getters.append(getter)
             try:
                 await getter
-            except:
+            except BaseException:
                 getter.cancel()  # Just in case getter is not done yet.
                 try:
                     # Clean self._getters from canceled getters.