My Vagrant's provision script to run Python3 on Ubuntu images

provision.sh

#!/usr/bin/env bash

# System Update
apt-get update
# Pre requisites Packages
apt-get install -y build-essential
apt-get install -y git

# Development Packages
apt-get install -y python3
apt-get install -y python3-dev
apt-get install -y python3-pip
apt-get install -y python-setuptools

# Python virtual environment
easy_install virtualenv
easy_install pip
easy_install virtualenvwrapper

source /usr/local/bin/virtualenvwrapper.sh
export WORKON_HOME="/home/vagrant/.virtualenvs"

if ! grep -Fxq "source /usr/local/bin/virtualenvwrapper.sh" .bashrc
then
    echo "Add VirtualEnv Wrapper in .bashrc"
    echo "source /usr/local/bin/virtualenvwrapper.sh" >> /home/vagrant/.bashrc
fi

lsvirtualenv | grep 'env' &> /dev/null

if [ $? == 1 ]; then
    echo "Creating Virtualenv"
    mkvirtualenv --python=/usr/bin/python3 env
    chown -R vagrant.vagrant .virtualenvs
fi

workon env

if [[ -f "/vagrant/requirements.txt" ]]; then
    echo "Installing Requirements"
    pip install -r /vagrant/requirements.txt
fi

# git config
git config --global user.name "User Name"
git config --global user.email email@email.com