title: How to calculate the distance between two points using return methods in python?
body: <p>I'm still new to python and have been trying to get the hang of it. I've been trying to learn simple return methods but I can't seem to get the hang of it. 
  I have been trying to find the distance between two points and this is what I have so far.
  If anyone could help me figure this out it would be very helpful! Thank you!</p>
  
  <pre><code>import math
  
  def calculateDistance(x1,y1,x2,y2):
       dist = math.sqrt((x2 - x1)**2 + (y2 - y1)**2)
       return dist
  
  calculateDistance(2,4,6,8)
  
  print calculateDistance
  </code></pre>