title: How to match non-printable characters in a python regular expression?
body: <p>How do you match non-printable characters in a python regular expression? In my case I have a string that has a combination of printable and non-printable characters.</p>
  
  <pre><code>Example String: "Det 3 @ NYY 5 ?7" where the ? is either 0x7f or 0x80.
  </code></pre>
  
  <p>In the above example I need to match 0x7f or 0x80. How do I specify this in a python regex?</p>