Every script a role ships now lives under `files/<language>/`, and the unit
suite is split the same way: `tests/unit/python/` beside new sibling trees for
the other languages. `tests/lint/filesystem/test_role_files_layout.py` keeps it
that way; directories whose shape is dictated from outside carry a `.nocheck`
naming the constraint (Docker build contexts, WordPress mu-plugins, the Joomla
extension, Odoo addons, Playwright suites, the `files/test/test.sh` harness
that `test-e2e-cli` resolves generically).
This cannot be applied in halves. Moving a file and repointing what names it
are the same change: 14 references resolve only at deploy time, so the tree is
green either before or after, never between.
Those 14 were found by static resolution over every reference class, not by the
test suite -- a full `make quality-high` was green while all of them were
broken:
* 7 `src:` values built from a role variable holding a bare filename
(svc-bkp-remote-2-local, decidim, espocrm, friendica, joomla, pixelfed x2).
The variable doubles as the destination name inside the container, so the
language segment belongs at the call site, not in the variable.
* `sys-service/tasks/04_base.yml` resolved every consumer's systemd script
through `first_found(..., errors='strict')` over `files/script.{sh,py}`.
18 roles ship exactly that and have no template fallback: the play would
have died on each.
* `sys-front-inj-javascript` fell back to `<role>/files/javascript.js`; the
interface now reads `files/javascript/javascript.js`.
* `sys-front-inj-logout/templates/head_sub.j2` built the cache-busting mtime
path through `path_absolute(... 'files', ...)`.
* 4 `ansible.builtin.script:` invocations naming a bare command
(pull.py, prune.sh, set_postgres_superuser_password.sh, ganesha-serve.sh).
* `dev-python/files/shell/install.sh` pointed at a sibling role's script.
Depth-dependent paths inside the moved trees were bumped accordingly: 59
`parents[N]` computations, 12 relative climbs, and the per-role recover CLI,
whose path `cli/administration/recover/recoverers.py` still assembled from the
pre-move location.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Python Development Utilities
Description
This Ansible role sets up a Python development environment on Arch Linux. It includes Python itself, the pip package manager, and builds on the general developer persona to support scripting, application development, data science, and more.
Learn more at the Python Official Site, the Arch Wiki - Python, and Wikipedia – Python.
Overview
This role provides the essential tooling for Python developers, enabling immediate use of python and pip from the command line. It supports both general-purpose scripting and advanced software engineering workflows.
Cosmos
The diagram places Python Development Utilities in the Infinito.Nexus cosmos: the components it deploys (capabilities), the central services it consumes (dependencies), and its outward reach (federation and bridged external networks).
flowchart LR
subgraph deps [Dependencies]
dep_dev_core["dev-core 💻 ⚙️"]
end
subgraph role [dev-python 💻]
svc_python["python"]
end
dep_dev_core -- "1:1" --> svc_python
Solid 1:1 edges are fixed relationships; dashed 0..1 edges are conditional (enabled only in matching deployments); red 0..0 edges are turned off in this role. Node markers show the role's deploy modes (💻 host, 🐳 compose, 🐝 swarm); ❌ marks a service that is explicitly turned off, and ⚙️ an Ansible role dependency declared in meta/main.yml.
Purpose
To simplify and standardize the provisioning of Python-ready environments for developers, students, data scientists, and automation engineers.
Features
- Installs Python and Pip: Ensures the interpreter and package manager are available.
- Prefers Python 3.11+: Installs Python 3.11+ where available and makes it the default via
/usr/local/bin/python3and/usr/local/bin/pip3. - Persona Integration: Extends
dev-corewith Python-specific tools. - Foundation for Further Stacks: Ideal starting point for Flask, Django, scientific computing, and automation.
Supported distro families in the installer script:
- Arch Linux
- Debian
- Ubuntu
- Fedora
- CentOS / RHEL
Customization
Easily extend this role with:
- Python virtualenv tools (
python-virtualenv,pyenv) - Popular libraries (
numpy,requests,flask) - Framework-specific roles (e.g.,
dev-python-django)
Credits
Implemented by Kevin Veen-Birkenbach. Part of the Infinito.Nexus Project and maintained by Kevin Veen-Birkenbach. Licensed under the Infinito.Nexus Community License (Non-Commercial).