title: How to exclude specific string using regex in Python?
body: <p>I'd like to match strings like:</p>
  
  <pre><code>45 meters?
  45, meters?
  45?
  45 ?
  </code></pre>
  
  <p>but not strings like:</p>
  
  <pre><code>45 meters you?
  45 you  ?
  45, and you?
  </code></pre>
  
  <p>In both cases the question mark must be at the end. So, essentially I want to exclude all those strings containing the word "you".</p>
  
  <p>I've tried the following regex:</p>
  
  <pre><code>'\d+.*(?!you)\?$'
  </code></pre>
  
  <p>but it matches the second case (probably because of <code>.*</code>)</p>