Macでpyenv使ってPythonの環境設定をするansible playbook ref: http://qiita.com/ikuwow/items/4a1d784876f70a1abd74

file2.txt

if [ `which pyenv` ]; then
    eval "$(pyenv init - --no-rehash)" # adding --no-rehash makes this faster
fi

main.yml

---
- hosts: localhost # hostname
  become: no
  gather_facts: no
  vars:
      python_version: "3.5.1"

  tasks:
    - include: tasks/python.yml

python.yml

---
- name: Install basic python packages
  homebrew: name=pyenv

- name: Check installed Python version
  shell: "pyenv versions | grep {{python_version}} > /dev/null; echo $?"
  ignore_errors: true
  register: python_is_installed
  changed_when: python_is_installed.stdout != '0'

- name: Install Python
  shell: "pyenv install {{python_version}}"
  args:
    creates: ~/.pyenv/versions/{{python_version}}/bin/python

- name: Check Python version
  shell: "python --version | grep {{python_version}} > /dev/null; echo $?"
  register: is_correct_version
  changed_when: is_correct_version.stdout != '0'

- name: Switch Python version
  shell: "pyenv global {{python_version}} && pyenv rehash"
  when: is_correct_version.stdout != '0'

- name: pyenv init
  shell: 'eval "$(pyenv init -)"'
  changed_when: is_correct_version.stdout != '0'