From f2244fbeeab045c5f015d1cb2f8f3b61c8ef1493 Mon Sep 17 00:00:00 2001
From: Thomas VINCENT <thomas.vincent@esrf.fr>
Date: Mon, 18 Nov 2024 16:56:29 +0100
Subject: [PATCH] fix profile error when plot item is None

---
 src/silx/gui/plot/tools/profile/core.py | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/silx/gui/plot/tools/profile/core.py b/src/silx/gui/plot/tools/profile/core.py
index 194f45936b..9e5c43152b 100644
--- a/src/silx/gui/plot/tools/profile/core.py
+++ b/src/silx/gui/plot/tools/profile/core.py
@@ -126,7 +126,10 @@ def _setPlotItem(self, plotItem):
         previousPlotItem = self.getPlotItem()
         if previousPlotItem is plotItem:
             return
-        self.__plotItem = weakref.ref(plotItem)
+        if plotItem is None:
+            self.__plotItem = None
+        else:
+            self.__plotItem = weakref.ref(plotItem)
         self.sigPlotItemChanged.emit()
 
     def getPlotItem(self):