From 5b944a323e2f0b11d7b5252aac6f6a5558a5b1fc Mon Sep 17 00:00:00 2001
From: Dani Pinyol <dani@avatarcognition.com>
Date: Tue, 21 Apr 2026 16:31:16 +0200
Subject: [PATCH] fix: random crash atexit with multithread julia

Invoke Base._atexit instead of jl_atexit_hook to avoid invoking finalizers, which might crash with multithread julia
---
 pysrc/juliacall/__init__.py | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/pysrc/juliacall/__init__.py b/pysrc/juliacall/__init__.py
index 62fa5a51..7af287e1 100644
--- a/pysrc/juliacall/__init__.py
+++ b/pysrc/juliacall/__init__.py
@@ -249,10 +249,15 @@ def args_from_config(config):
     # including running finalizers for any objects that still exist
     @atexit.register
     def at_jl_exit():
-        jl_atexit_hook = lib.jl_atexit_hook
-        jl_atexit_hook.argtypes = [c.c_int]
-        jl_atexit_hook.restype = None
-        jl_atexit_hook(0)
+        jl_eval(b'''
+                try 
+                    Base._atexit(Int32(0))
+                    flush(Base.stdout)
+                    flush(Base.stderr)
+                catch e 
+                    @error "Error during Julia atexit" e
+                end;
+        ''')
 
     # initialise PythonCall
     jl_eval = lib.jl_eval_string