title: Proper use of sep in print
body: <p>I am new at python, and I am having problems with the use of sep=.
  What I want to do is to not have a space between the number <code>25</code> and the <code>.</code></p>
  
  <p>Here is my code and the error I get. I am running this code on MAC OSX El Capitan's Terminal.</p>
  
  <p>code:</p>
  
  <pre><code>side = 5
  area = side * side
  print "The area of a square with side ",side,"is ",area,".",sep=" " 
  </code></pre>
  
  <p>Output:</p>
  
  <pre><code>print "The area of a square with side ",side,"is ",area,".",sep=" "
  
                                                                 ^
  SyntaxError: invalid syntax
  </code></pre>