From ac124cd3d70ab9007b1a9adc5da7cea64c0864c4 Mon Sep 17 00:00:00 2001
From: stonebig <stonebig34@gmail.com>
Date: Sun, 11 Apr 2021 19:17:42 +0200
Subject: [PATCH] use utf-8

as Windows-10 didn't like character '\u2295'
---
 roboticstoolbox/robot/ERobot.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/roboticstoolbox/robot/ERobot.py b/roboticstoolbox/robot/ERobot.py
index c73b2f797..53929dbe9 100644
--- a/roboticstoolbox/robot/ERobot.py
+++ b/roboticstoolbox/robot/ERobot.py
@@ -760,7 +760,7 @@ def dotfile(self, filename, etsbox=False, jtype=False, static=True):
         :seealso: :func:`showgraph`
         """
         if isinstance(filename, str):
-            file = open(filename, 'w')
+            file = open(filename, 'w', encoding='utf-8')
         else:
             file = filename