Function infinite_recursion

Lib/test/support/__init__.py:2515–2526

(max_depth=None)

        sys.setrecursionlimit(original_limit)

def infinite_recursion(max_depth=None):
    if max_depth is None:
        # Pick a number large enough to cause problems
        # but not take too long for code that can handle
        # very deep recursion.
        max_depth = 20_000
    elif max_depth < 3:
        raise ValueError(f"max_depth must be at least 3, got {max_depth}")
    depth = get_recursion_depth()
    depth = max(depth - 1, 1)  # Ignore infinite_recursion() frame.
    limit = depth + max_depth
    return set_recursion_limit(limit)

def ignore_deprecations_from(module: str, *, like: str) -> object:
    token = object()