From 1261c351473d09cdbf2c2bf7fa298edfd40a6e90 Mon Sep 17 00:00:00 2001
From: Eric Kooistra <kooistra@astron.nl>
Date: Wed, 23 Jun 2021 10:58:41 +0200
Subject: [PATCH] Added how to install tkinter for plotting in Python3.

---
 doc/erko_howto_tools.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/doc/erko_howto_tools.txt b/doc/erko_howto_tools.txt
index 58bd7d22dc..b74bbd3a32 100755
--- a/doc/erko_howto_tools.txt
+++ b/doc/erko_howto_tools.txt
@@ -701,6 +701,8 @@ Start --> Administration --> Synaptic package manager
 > sudo pip install numpy      # to run Python2 library installer as root
 > sudo pip3 install numpy     # to run Python3 library installer as root
 
+> sudo apt-get install python3-tk # worked, now I can do: python3 test_plot.py
+
 > sudo apt-get install pip    # to install Python2 library installer
 > sudo apt-get install python-matplotlib
 
-- 
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