They aren&#x27;t are they? Cached method calls are fairly fast from what i&#x27;ve read.<p>[1] <a href="https:&#x2F;&#x2F;www.mikeash.com&#x2F;pyblog&#x2F;performance-comparisons-of-common-operations-leopard-edition.html" rel="nofollow">https:&#x2F;&#x2F;www.mikeash.com&#x2F;pyblog&#x2F;performance-comparisons-of-co...</a>