Function module_not_installed

tests/test_guarded_eval.py:56–67

(module: str)

@contextmanager
def module_not_installed(module: str):
    import sys

    try:
        to_restore = sys.modules[module]
        del sys.modules[module]
    except KeyError:
        to_restore = None
    try:
        yield
    finally:
        sys.modules[module] = to_restore


def test_external_not_installed():