Interpreter Discovery
Most Ansible modules that execute under a POSIX environment require a Python interpreter on the target host. Unless configured otherwise, Ansible will attempt to discover a suitable Python interpreter on each target host the first time a Python module is executed for that host.
To control the discovery behavior:
- for individual hosts and groups, use the - ansible_python_interpreterinventory variable
- globally, use the - interpreter_pythonkey in the- [defaults]section of- ansible.cfg
Configure a path to a specific Python interpreter, or one of the following values:
- auto (default) :
- Searches the configurable list of common Python interpreter paths (see INTERPRETER_PYTHON_FALLBACK) and issues a warning that future installation of another Python interpreter could alter the one chosen. 
- auto_legacy :
- Deprecated alias for - auto.
- auto_silent :
- Same as - auto, but does not issue warnings.
- auto_legacy_silent :
- Deprecated alias for - auto_silent.
