title: find a given word in between brackets in a string python regex
body: <p>I want to find out if a string contains the word "randomize". This word my exist in and outside of brackets in the string but I am only interested if the word exists IN SIDE of the brackets.</p>
  
  <pre><code>mystring = "You said {single order='randomize'} that P.E is...Why?"
  </code></pre>
  
  <p>I understand that i have to use regex for this but my attampts have failed thus far. </p>
  
  <p>Essentially I want to say:</p>
  
  <pre><code>look for "randomize" and check if its in brackets. 
  </code></pre>
  
  <p>Thanks</p>