From d7c20ddf555c9e308d1fadedc73d723040039565 Mon Sep 17 00:00:00 2001
From: Thomas Fritz <thomas.fritz.2000@gmx.de>
Date: Mon, 18 Sep 2023 12:46:32 +0200
Subject: [PATCH] Add missing model tracing step to cpp example readme, fixes
 #7952 (#7963)

Co-authored-by: Philip Meier <github.pmeier@posteo.de>
---
 examples/cpp/hello_world/README.rst | 1 +
 1 file changed, 1 insertion(+)

diff --git a/examples/cpp/hello_world/README.rst b/examples/cpp/hello_world/README.rst
index 81161112034..68b10a65b3c 100644
--- a/examples/cpp/hello_world/README.rst
+++ b/examples/cpp/hello_world/README.rst
@@ -10,6 +10,7 @@ Once both dependencies are sorted, we can start the CMake fun:
 
 1) Create a ``build`` directory inside the current one.
 2) from within the ``build`` directory, run the following commands:
+    - ``python ../trace_model.py`` To use a torchvision model in C++, you must first export it from the python version of torchvision. More information can be found on the corresponding `documentation page <https://pytorch.org/tutorials/advanced/cpp_export.html#loading-a-torchscript-model-in-c>`_.
     - | ``cmake -DCMAKE_PREFIX_PATH="<PATH_TO_LIBTORCH>;<PATH_TO_TORCHVISION>" ..``
       | where ``<PATH_TO_LIBTORCH>`` and ``<PATH_TO_TORCHVISION>`` are the paths to the libtorch and torchvision installations.
     - ``cmake --build .``