title: Progressively adding to a list
body: <p>Take the <code>list</code> variable <code>num1 = []</code></p>
  <p>and say i also take <code>num1_child = randint(0,100)</code></p>
  <p>how do I go about making <code>num1</code> progressively become a longer list by adding <code>num1_child</code> to the list, as opposed to simply changing it's value every eteration?</p>
  <p><em>(I looked at: <a href="https://stackoverflow.com/questions/54653781/adding-integers-progressively-to-a-list">Adding integers progressively to a list</a> but did not fully understand how to implement that in my code)</em></p>