title: Python function producing unexpected output
body: <p>I have the following python code:</p>
  <pre><code>from time import time
  
  
  def program1(a,b):
      for trial in range(5):
          start = time()
          a + b
          print (time() - start)
  program1(27,59)
  </code></pre>
  <p>and according to the tutorial should produce this output:</p>
  <pre><code>9.53674316406e-07
  2.14576721191e-06
  2.14576721191e-06
  3.09944152832e-06
  9.53674316406e-07
  </code></pre>
  <p>Instead it produces:</p>
  <pre><code>0.0
  0.0
  0.0
  0.0
  0.0
  &gt;&gt;&gt; 
  </code></pre>
  <p>I am trying to use it demonstrate the concept of time/space complexity.</p>
  <p>Can anyone shed any light on the output and why it is not accepting the parameters?</p>