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Description:

pyventory 3.3.2

Pyventory
Ansible Inventory implementation that uses Python syntax
Install
pip3 install pyventory

Features

Modular inventory.
Assests inheritance using Python classes.
Support for multiple inheritance.
Support for mixins.
Support for vars templating using Python string formatting.
Python 3 (>=3.6) support.
Python 2 is not supported.

Usage
Create hosts.py and make it executable.
A short example of the hosts.py contents:
#!/usr/bin/env python3
from pyventory import Asset, ansible_inventory

class All(Asset):
run_tests = False
use_redis = False
redis_host = 'localhost'
minify = False
version = 'develop'

class Staging(All):
run_tests = True

staging = Staging()

ansible_inventory(locals())

Consider a more complex example which passes the following json output to Ansible.
Run Ansible playbook with the -i hosts.py key:
ansible-playbook -i hosts.py site.yml

Notice that you need to have your inventory package in PYTHONPATH.