title: Return Statement not outputting result in Flask
body: <p>I have this code written and majorly I wanted the result to print out values, combining with strings and newlines. I was also trying to avoid having the results in (). However it seems I am missing something as the result prints out nothing. 
  I am aware of using the print function but the problem is this. The function is actually being rendered within a Flask html page. Using the Print results in 'None' being outputted when the html page is called. Or if there is another workaround using Print and being able to render it.
  Here is a draft of the code.</p>
  
  <pre><code>def testline():
      str1 = 'result'
      str2 = 'devastating'
      str3 = 'Filling Wao: '
  
      return "The {0} for the current year is {1} \n Definition: {2} \n Wao".format(str1, str2, str3)
  testline()
  </code></pre>
  
  <p>Any help will be most appreciated.</p>