From 9df9bfa4b767eeca446f20357f00f84f41a69965 Mon Sep 17 00:00:00 2001
From: Gregory <becker33@llnl.gov>
Date: Thu, 2 Mar 2023 18:01:13 -0800
Subject: [PATCH] attempt at fixing typing info

---
 lib/spack/spack/util/atomic_update.py | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/spack/spack/util/atomic_update.py b/lib/spack/spack/util/atomic_update.py
index 24921c9a459..2f517b3f99a 100644
--- a/lib/spack/spack/util/atomic_update.py
+++ b/lib/spack/spack/util/atomic_update.py
@@ -2,19 +2,19 @@
 # Spack Project Developers. See the top-level COPYRIGHT file for details.
 #
 # SPDX-License-Identifier: (Apache-2.0 OR MIT)
-
+import ctypes
 import os
 from contextlib import contextmanager
+from typing import Optional
 
 import llnl.util.filesystem as fs
 from llnl.util.symlink import symlink
 
+libc: Optional[ctypes.CDLL] = None
 try:
-    from ctypes import CDLL
-
-    libc = CDLL("/lib64/libc.so.6", 0x04)  # 0x04 is RTLD_NOLOAD
+    libc = ctypes.CDLL("/lib64/libc.so.6", 0x04)  # 0x04 is RTLD_NOLOAD
 except BaseException:
-    libc = None
+    pass
 
 
 def use_renameat2():