From fae2f205a72b100c7c31e47bdfe807c583dba132 Mon Sep 17 00:00:00 2001
From: Jah-yee <166608075+Jah-yee@users.noreply.github.com>
Date: Sat, 3 Oct 2026 19:58:09 +0800
Subject: [PATCH] fix: guard against invalid handle in close() (fixes #214)

---
 picoscope/picobase.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/picoscope/picobase.py b/picoscope/picobase.py
index e02d788..00299fb 100644
--- a/picoscope/picobase.py
+++ b/picoscope/picobase.py
@@ -1127,7 +1127,7 @@ def close(self):
         You should call this yourself because the Python garbage collector
         might take some time.
         """
-        if self.handle is not None:
+        if self.handle:
             self._lowLevelCloseUnit()
             self.handle = None