title: Is the golden ratio defined in Python?
body: <p>Is there a way to get the golden ratio, <em><code>phi</code></em>, in the standard python module? I know of <em><code>e</code></em> and <em><code>pi</code></em> in the <code>math</code> module, but I might have missed <em><code>phi</code></em> defined somewhere. </p>