From f6b5a4140f4018cc98110ab67e030b3f82495630 Mon Sep 17 00:00:00 2001
From: Chris Fedde <chris@fedde.us>
Date: Mon, 25 Apr 2022 14:39:35 -0600
Subject: [PATCH] needed for Ubuntu 21.10

error was
```
      triangle/core.c:4:10: fatal error: Python.h: No such file or directory
          4 | #include "Python.h"
            |          ^~~~~~~~~~
```
After change `pip3 install ./belt-engine-0.1.3.tar.gz` succeded.
---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index fb4f43a..e7478c8 100755
--- a/README.md
+++ b/README.md
@@ -15,6 +15,7 @@ sudo apt install \
   liblapack-dev \
   gfortran \
   libjpeg-dev \
+  python3-dev \
   zlib1g-dev
 
 wget https://github.com/Autodrop3d/BeltEngine/raw/main/dist/belt-engine-0.1.3.tar.gz