From 606ed97be51995c7844b9163c9fd76887d4f8e0c Mon Sep 17 00:00:00 2001
From: Pepijn <pepijn@huggingface.co>
Date: Wed, 8 Apr 2026 14:15:33 +0200
Subject: [PATCH] refactor(envs): remove __del__ from _LazyAsyncVectorEnv

__del__ is unreliable as a cleanup mechanism. close() is already called
explicitly in the eval loop's finally block, so the finalizer is redundant.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 src/lerobot/envs/libero.py | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/src/lerobot/envs/libero.py b/src/lerobot/envs/libero.py
index bebd12731..7b1e8efe0 100644
--- a/src/lerobot/envs/libero.py
+++ b/src/lerobot/envs/libero.py
@@ -458,9 +458,6 @@ class _LazyAsyncVectorEnv:
             self._env.close()
             self._env = None
 
-    def __del__(self):
-        self.close()
-
 
 # ---- Main API ----------------------------------------------------------------