Function pytest_unconfigure

src/_pytest/unraisableexception.py:156–173

(config: Config)

def pytest_unconfigure(config: Config) -> None:
    # Runs before ``_cleanup_stack.close()``, so warning filters from
    # cleanup-stack-managed contexts (notably the ``warnings`` plugin's
    # ``catch_warnings``) are still installed when garbage-collected
    # finalizers fire. A ``config.add_cleanup`` callback would instead
    # couple correctness to LIFO pop order across plugins' cleanups.
    if unraisable_exceptions not in config.stash:
        # ``pytest_configure`` did not complete (e.g. a usage error raised
        # in another plugin's configure), so the queue stash was never set.
        return
    # PyPy can resurrect objects in __del__, so it needs several GC passes
    # (5, per the Trio project); CPython frees cycles in one pass. See #14441.
    _default_gc_collect_iterations = 5 if sys.implementation.name == "pypy" else 1
    gc_collect_iterations = config.stash.get(
        gc_collect_iterations_key, _default_gc_collect_iterations
    )
    gc_collect_harder(gc_collect_iterations)
    collect_unraisable(config)


@pytest.hookimpl(trylast=True)