brew update
brew install pyenv
pyenv install 3.3.6
pyenv install 3.4.5
pyenv install pypy-5.3.1
export PYENV_ROOT="$HOME/.pyenv"
export PATH="$PYENV_ROOT/bin:$PATH"
eval "$(pyenv init -)"
pyenv global system 3.4.5
pyenv global system 3.3.6
pyenv global system pypy-5.3.1