PySide6: Handle not finding a slot by name

Change-Id: Ie2c652223aaaa853c99d540acebb99f754f34d61
Reviewed-by: Christian Tismer <tismer@stackless.com>
(cherry picked from commit 4b763b54737b0da8f10cfed245637310d4cd80c7)
Reviewed-by: Cristian Maureira-Fredes <cristian.maureira-fredes@qt.io>

1 files changed, 5 insertions, 0 deletions

diff --git a/sources/pyside6/libpyside/signalmanager.cpp b/sources/pyside6/libpyside/signalmanager.cpp
index db235d8ba..177681ae8 100644
--- a/sources/pyside6/libpyside/signalmanager.cpp
+++ b/sources/pyside6/libpyside/signalmanager.cpp
@@ -601,6 +601,11 @@ static int callMethod(QObject *object, int id, void **args)
         QByteArray methodName = method.methodSignature();
         methodName.truncate(methodName.indexOf('('));
         Shiboken::AutoDecRef pyMethod(PyObject_GetAttrString(self, methodName));
+        if (pyMethod.isNull()) {
+            PyErr_Format(PyExc_AttributeError, "Slot '%s::%s' not found.",
+                         metaObject->className(), method.methodSignature().constData());
+            return -1;
+        }
         return SignalManager::callPythonMetaMethod(method, args, pyMethod, false);
     }
     return -1;