title: python regex "parenthesis unbalanced error" on unbuntu but not on macos machine
body: <p>I'm using following line to search for function call:</p>
  
  <pre><code>pattern=fname+"(.*)" # WHERE FNAME IS SOME FUNCTION NAME
  </code></pre>
  
  <p>The code is working fine on my mac, but when I run this on my ubuntu machine, i gets - "unbalanced parenthesis error"</p>