title: python about multiple %s in a string
body: <pre><code>str = 'I love %s and %s, he loves %s and %s.' 
  </code></pre>
  
  <p>I want to use this format to display</p>
  
  <p>I love apple and pitch, he loves apple and pitch.</p>
  
  <p>Only add two variable please, but need a way to use it twice in one sentence. </p>