def get_installed_pypackages():
    return {p.project_name.lower(): p for p in pkg_resources.working_set}
def test_above_or_equal_to():
    """Greater than or equal to y."""
    p = are.above_or_equal_to(4)
    ps = [p(x) for x in range(1, 6)]
    assert ps == [False, False, False, True, True]