From d042ec591efcc689468bd9ca1e9ab7c5f74af7d9 Mon Sep 17 00:00:00 2001
From: Mark Liversedge <liversedge@gmail.com>
Date: Sat, 2 May 2020 14:07:57 +0100
Subject: [PATCH] Fix crash on --no-python

.. if there is a python chart in the view, it will crash as setWeb
   does not check to see if embedding worked, and is called via the
   property system so must always check.
---
 src/Charts/PythonChart.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Charts/PythonChart.cpp b/src/Charts/PythonChart.cpp
index 23b876e84..c5abf35f8 100644
--- a/src/Charts/PythonChart.cpp
+++ b/src/Charts/PythonChart.cpp
@@ -418,6 +418,9 @@ PythonChart::PythonChart(Context *context, bool ridesummary) : GcChartWindow(con
 void
 PythonChart::setWeb(bool x)
 {
+    // check python was loaded
+    if (python == NULL || python->loaded == false) return;
+
     // toggle the use of a web chart or a qt chart for rendering the data
     if (x && canvas==NULL) {