title: TypeError: 'int' object is not callable python
body: <p>I want some help with a program it's giving an error in python says TypeError: 'int' object is not callable. I want to know what I'm doing wrong. Thanks in advance   </p>
  
  <pre><code>from math import sqrt
  from math import pi
  
  ba = pi * 2( 2 + sqrt(3**2 + 2**2)))
  
  print (ka)
  </code></pre>