title: How do i edit rule with cssutils in python
body: <p>I have never used cssutils in python. when I print a rule I get the following string, how do I edit the css rule in python? For example if I wanted to change the background color?</p>
  
  <pre><code>&lt;cssutils.css.CSSStyleRule object selectorText='#panel' style='color: #eee;\nbackground-color: #000;\nfont-weight: bold;\nheight: 32px' _namespaces={} at 0x7f9b5d76bd30&gt;
  </code></pre>