For Python3 environment

Vagrantfile

Vagrant.configure("2") do |config|
  config.vm.box = "ubuntu/trusty64"
  config.vm.network :forwarded_port, guest: 5000, host: 5000
  config.vm.network :forwarded_port, guest: 8888, host: 8888
  config.vm.synced_folder ".", "/vagrant"

  GUEST_PYTHON_VERSION = '3.5.2'

  # 必要なパッケージをインストール
  config.vm.provision "shell", privileged: true, inline: <<-__SCRIPT__
    export DEBIAN_FRONTEND=noninteractive
    apt-get update -y

    # develop env
    apt-get install -y make git-core curl zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev python-software-properties libffi-dev debconf-utils libbz2-dev llvm libsqlite3-dev

    # lib for NumPy、SciPy、matplotlib
    apt-get install -y libfreetype6-dev libblas-dev liblapack-dev gfortran tk-dev

    # Set timezone
    cp /usr/share/zoneinfo/Japan /etc/localtime

  __SCRIPT__

  # Python, Jupyter notebook
  config.vm.provision "shell", privileged: false, inline: <<-__SCRIPT__
    git clone https://github.com/yyuu/pyenv ~/.pyenv

    echo "alias ls='ls --color=auto'" ~/.bash_profile
    echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bash_profile
    echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bash_profile
    echo 'eval "$(pyenv init -)"' >> ~/.bash_profile
    source ~/.bash_profile

    #{defined?(GUEST_PYTHON_VERSION) ? "pyenv install %s; pyenv global %s;" % [GUEST_PYTHON_VERSION, GUEST_PYTHON_VERSION] : ''}
    pip install numpy ipython jupyter flask

    jupyter notebook --generate-config
    echo "c.NotebookApp.ip = '*'" >> ~/.jupyter/jupyter_notebook_config.py
    echo "c.NotebookApp.notebook_dir = '/vagrant'" >> ~/.jupyter/jupyter_notebook_config.py
    echo "c.NotebookApp.open_browser = False" >> ~/.jupyter/jupyter_notebook_config.py

  __SCRIPT__

  config.vm.provision "file", source: "~/.gitconfig", destination: ".gitconfig"

  config.vm.provider "virtualbox" do |vb|
    vb.memory = ENV["VM_MEMORY"] || "1024"
    vb.customize ["setextradata", :id, "VBoxInternal/Devices/VMMDev/0/Config/GetHostTimeDisabled", 0]
  end
end