pytest-subinterpreter

A Pytest extension for running the pytest session inside a sub interpreter. This extension is mainly targeted for Python extension library maintainers that want to verify their existing test suite works inside a sub interpreter.

Requirements:

• Python 3.13.0-alpha.2 or above
• Pytest 7 or above

Installation

pip install pytest-subinterpreter

Usage

The extension arguments are:

• --interpreter-per Defaults to session (also the only option at the moment).

$ pytest tests/test_simple.py
============================================================================== test session starts ===============================================================================
platform darwin -- Python 3.13.0a1+, pytest-7.4.3, pluggy-1.3.0
rootdir: /Users/anthonyshaw/projects/pytest-subinterpreter
plugins: subinterpreter-0.0.0
collected 1 item                                                                                                                                                                 

tests/test_simple.py .                                                                                                                                                     [100%]

=============================================================================== 1 passed in 0.02s ================================================================================