From a00c8ff4475f7d57ce7346543b46cd4fc7b7136f Mon Sep 17 00:00:00 2001
From: Robin Dunn <robin@alldunn.com>
Date: Wed, 15 Apr 2020 12:23:09 -0700
Subject: [PATCH] AllowNone for wxDVCVariant, like wxVariant

---
 src/dvcvariant.sip | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/dvcvariant.sip b/src/dvcvariant.sip
index 248920f0..3df51b16 100644
--- a/src/dvcvariant.sip
+++ b/src/dvcvariant.sip
@@ -28,7 +28,10 @@ wxVariant wxDVCVariant_in_helper(PyObject* source)
 {
     wxVariant ret;
 
-    if (wxPyWrappedPtr_TypeCheck(source, wxT("wxDataViewIconText"))) {
+    if (source == Py_None) {
+        ret.MakeNull();
+    }
+    else if (wxPyWrappedPtr_TypeCheck(source, wxT("wxDataViewIconText"))) {
         wxDataViewIconText* ptr;
         wxPyConvertWrappedPtr(source, (void**)&ptr, wxT("wxDataViewIconText"));
         ret << *ptr;
@@ -57,7 +60,7 @@ PyObject* wxDVCVariant_out_helper(const wxVariant& value)
 
 
 
-%MappedType wxDVCVariant
+%MappedType wxDVCVariant /AllowNone/
 {
     %ConvertToTypeCode
         // Code to test a PyObject for compatibility.