title: Python Regular Expression For Host Header
body: <p>Given this string:</p>
  
  <pre><code>GET /dsadda HTTP/1.1\r\nUser-Agent: curl/7.26.0\r\nHost: www.youtube.com\r\nAccept: */*\r\n\r\n
  </code></pre>
  
  <p>How would I obtain everything in a Python regex group between <code>Host:</code> and <code>\r\n</code>?</p>
  
  <p>In this example, I would like <code>re.match.group(1)</code> to return <code>www.youtube.com</code></p>