running a command that requires a virtualenv

Archives Ansible Project
1

Is this answer still considered the best way to run a command that requires a virtualenv to run?

http://stackoverflow.com/questions/20040141/ansible-command-from-inside-virtualenv?rq=1

pasting the answer for posterity,

---
# Build virtualenv
- hosts: all
vars:
  PROJECT_HOME: "/tmp/my_test_home"
  ansible_python_interpreter: "/usr/local/bin/python"
tasks:
  - name: "Create virtualenv"
    shell: virtualenv "{{ PROJECT_HOME }}/venv"
           creates="{{ PROJECT_HOME }}/venv/bin/activate"

  - name: "Copy virtualenv wrapper file"
    synchronize: src=pyvenv
                 dest="{{ PROJECT_HOME }}/venv/bin/pyvenv"

# Use virtualenv
- hosts: all
vars:
  PROJECT_HOME: "/tmp/my_test_home"
  ansible_python_interpreter: "/tmp/my_test_home/venv/bin/pyvenv"
tasks:
  - name: "Guard code, so we are more certain we are in a virtualenv"
    shell: echo $VIRTUAL_ENV
    register: command_result
    failed_when: command_result.stdout == ""

pyenv wrapper file:

#!/bin/bash
source "$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )/activate"
python $@