title: python scrapy get value using span=id
body: <p>I'm trying to get the word "Profession" from this html line:</p>
  
  <pre><code>    &lt;span id="PractitionerDetails1_Label4"&gt;Profession:&lt;/span&gt;           
  </code></pre>
  
  <p>I've tried doing this:</p>
  
  <pre><code>sel.css(span[id=PractitionerDetails1_Label4]).extract()
  </code></pre>
  
  <p>It clearly doesn't work. Please help</p>