From dffddc338f28c00f2270e4bf3aed417fc10129df Mon Sep 17 00:00:00 2001
From: lantz <rlantz@cs.stanford.edu>
Date: Fri, 29 Jan 2021 22:39:19 -0800
Subject: [PATCH] Install python3 mn last in install-mininet-vm.sh (#1021)

This means that 'mn' will run be default in python3.

For python2, run

    sudo python2 `which mn`

Also:

- change mn execution line to /usr/bin/python
  (install seems to change it to python2 or python3)

- don't install python-is-python3 package
---
 bin/mn                        | 2 +-
 util/vm/install-mininet-vm.sh | 5 ++---
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/bin/mn b/bin/mn
index 3c5a7ec..46667ab 100755
--- a/bin/mn
+++ b/bin/mn
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/python
 
 """
 Mininet runner
diff --git a/util/vm/install-mininet-vm.sh b/util/vm/install-mininet-vm.sh
index 2ea176e..c1c8403 100755
--- a/util/vm/install-mininet-vm.sh
+++ b/util/vm/install-mininet-vm.sh
@@ -36,11 +36,10 @@ fi
 # Install Mininet for Python2 and Python3
 APT="sudo apt-get -y -qq"
 $APT install python3
-$APT install python-is-python3 || true
 $APT install python2 || $APT install python
-python --version
-time PYTHON=python3 mininet/util/install.sh
+python --version || $APT install python-is-python3
 time PYTHON=python2 mininet/util/install.sh -n
+time PYTHON=python3 mininet/util/install.sh
 # Finalize VM
 time mininet/util/install.sh -tcd
 # Ignoring this since NOX classic is deprecated