title: Alternative ways to instantiate a class in Python
body: <p>I am currently writing my python classes and instantiate them like this</p>
  
  <pre><code>class calculations_class():
      def calculate(self):
          return True
  
  Calculations = calculations_class()
  </code></pre>
  
  <p>I was wondering if I was doing this correctly, or if there were any other ways to instantiate them. Thanks!</p>