CentOS 7 install Python 3

centos7-install-python3.md

why don't use pyenv

I tried pyenv, but it installed python 3.6 can not find fcntl module.

enable software collections

sudo yum install centos-release-scl

install python 3

sudo yum install rh-python36

using python 3

scl enable rh-python36 bash

check python version

python --version

create virtual environment

cd python-project-src && python -m venv env && source env/bin/activate

more about software collections