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Build Status Ansible Role

TOOCS / Ansible Role: TOOCS.python

/!\ This role has been renamed - Old name: FlorianKempenich.python-virtualenv /!\

  • Install multiple versions of python python using asdf (or pyenv)
  • Install pipenv for all versions
  • Optional: Install global pip packages for the default version of python

TOOCS?

TOOCS - The Opinionated One-Click Setups are a set of tools / ansible roles designed to setup a system in one click. They are a simple, reliable, way to setup a given tool. You can use them as is, or, inspecting their code, as a tutorial to follow step by step.

They are, as their name suggests, opinionated: while they guarantee to setup the given tool in one click, they do not guarantee consistency in how they achieve it, new releases might introduce breaking changes.
Read the code and make sure you understand what's happening!

Requirements

This role is only working on MacOSX & Ubuntu/Debian.

Role Variables

  • python_versions

  • global_pip_packages

    • List of pip packages to install
    • The packages will only be installed for the default version of python (the first in the list)
    • Default: []
  • installation_method

  • asdf_skip_shell_setup

Installation Methods

asdf

Prefered and default installation method using the asdf version manager

The installation and configuration of asdf as well as the python installation is delegated to another TOOCS: TOOCS.asdf.

This TOOCS only takes care of installing the optional global pip modules.

Post install - with asdf: Shell configuration

  • If you are using zsh, you're all set! Your shell has been automatically set up during the installation of asdf.

  • If you are NOT using zsh some manual setup is required, see: TOOCS/asdf - Non zsh Users

  • Alternatively, if asdf is already setup on your machine, you might want to skip the asdf automatic shell setup => Set the variable asdf_skip_shell_setup to True


pyenv

Alternative version using the pyenv version manager

Post install - with pyenv: Shell configuration

Since pyenv is used to manage the different python versions, it needs to be activated in your shell.

Simply add these lines to the corresponding files:

  • ~/.zshrc / ~/.bashrc

export PYENV_ROOT="$HOME/.pyenv"
export PATH="$PYENV_ROOT/bin:$PATH"
  • ~/.zlogin / ~/.bash_profile

if command -v pyenv 1>/dev/null 2>&1; then
    eval "$(pyenv init -)"
fi

The reason we're splitting the initialisation between these two files is to ensure smooth operation with both pyenv and pipenv. That way, the pyenv activation is only done once per login shell and does not interfere with the sub-shell started with pipenv shell.
Learn more about it: Pyenv Issue #184 - Wrong Python inside of 'pipenv shell'


Example Playbook

- hosts: localhost
  tasks:
    - include_role:
        name: TOOCS.python
      vars:
        python_versions:
          - 3.7.0
          - 2.7.15
        global_pip_packages:
          - cheat
          - howdoi
          - ansible-droplet


# OR

- hosts: localhost
  tasks:
    - include_role:
        name: TOOCS.python
      vars:
        python_versions:
          - 3.7.0
        installation_method: asdf
        asdf_skip_shell_setup: True

# OR

- hosts: localhost
  tasks:
    - include_role:
        name: TOOCS.python
      vars:
        python_versions:
          - 3.7.0
        installation_method: pyenv

License

MIT

Author Information

Follow me on Twitter: @ThisIsFlorianK
Find out more about my work: Florian Kempenich - Personal Website

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Installs and setup a clean `python` workspace. Versions managed w/ `pyenv`. Virtualenv managed w/ `pipenv`

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