From 6b40acb354edc23dfba1f952d7a7d3045b42d1f4 Mon Sep 17 00:00:00 2001
From: Bruno Turcksin <bruno.turcksin@gmail.com>
Date: Tue, 24 Oct 2023 17:14:53 -0400
Subject: [PATCH] Python: write_vtu write a serialized mesh

---
 contrib/python-bindings/source/triangulation_wrapper.cc | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/contrib/python-bindings/source/triangulation_wrapper.cc b/contrib/python-bindings/source/triangulation_wrapper.cc
index e802415a7c..149e5c818b 100644
--- a/contrib/python-bindings/source/triangulation_wrapper.cc
+++ b/contrib/python-bindings/source/triangulation_wrapper.cc
@@ -788,6 +788,8 @@ namespace python
       const Triangulation<dim, spacedim> *tria =
         static_cast<const Triangulation<dim, spacedim> *>(triangulation);
 
+      GridOut mesh_writer;
+
       GridOut::OutputFormat output_format;
       if (format.compare("dx") == 0)
         output_format = GridOut::OutputFormat::dx;
@@ -808,11 +810,14 @@ namespace python
       else if (format.compare("vtk") == 0)
         output_format = GridOut::OutputFormat::vtk;
       else if (format.compare("vtu") == 0)
-        output_format = GridOut::OutputFormat::vtu;
+        {
+          output_format = GridOut::OutputFormat::vtu;
+          GridOutFlags::Vtu flags(true);
+          mesh_writer.set_flags(flags);
+        }
       else
         output_format = GridOut::OutputFormat::none;
 
-      GridOut       mesh_writer;
       std::ofstream ofs(filename);
       mesh_writer.write(*tria, ofs, output_format);
       ofs.close();
-- 
2.39.5