Description of Issue/Question

Hello, I can't managed to install salt with python3 support on AmazonLinux 2

Setup

(Please provide relevant configs (Be sure to remove sensitive info).)
Tested on Amazon Linux AMI amzn2-ami-hvm-2.0.20191116.0-x86_64-gp2 (ami-00068cd7555f543d5)

Steps to Reproduce Issue

curl -o /tmp/bootstrap-salt.sh -L https://bootstrap.saltstack.com
sh /tmp/bootstrap-salt.sh -x python3

Versions and Systems

salt -V
Salt Version:
Salt: 2019.2.2

Dependency Versions:
cffi: 1.6.0
cherrypy: Not Installed
dateutil: 2.6.0
docker-py: Not Installed
gitdb: Not Installed
gitpython: Not Installed
ioflo: Not Installed
Jinja2: 2.7.2
libgit2: Not Installed
libnacl: Not Installed
M2Crypto: 0.31.0
Mako: Not Installed
msgpack-pure: Not Installed
msgpack-python: 0.5.6
mysql-python: Not Installed
pycparser: 2.14
pycrypto: 2.6.1
pycryptodome: Not Installed
pygit2: Not Installed
Python: 2.7.16 (default, Sep 13 2019, 20:28:21)
python-gnupg: Not Installed
PyYAML: 3.11
PyZMQ: 15.3.0
RAET: Not Installed
smmap: Not Installed
timelib: Not Installed
Tornado: 4.2.1
ZMQ: 4.1.4

System Versions:
dist:
locale: UTF-8
machine: x86_64
release: 4.14.152-127.182.amzn2.x86_64
system: Linux
version: Not Installed