title: How do i remove anything inside parentheses () in python
body: <p>How do I remove whatever is inside the brackets?</p>
  
  <p>Sample string:</p>
  
  <pre><code>cost
  889990(+2.4%)
  </code></pre>
  
  <p>My code:</p>
  
  <pre><code>data['cost']=re.sub(('(\d+)'), '', data.cost)
  </code></pre>
  
  <p>What I'm trying to achieve:</p>
  
  <pre><code>cost
  889990
  </code></pre>