title: How to remove space in python 2.7.5
body: <p>When I use the code in python 2.7.5</p>
  
  <pre><code>for i in [1,2]:
         print 'distance',':400@CA',':',i,'@CA'
  </code></pre>
  
  <p>I got the following</p>
  
  <pre><code>distance :400@CA : 1 @CA
  
  distance :400@CA : 2 @CA
  </code></pre>
  
  <p>I want to remove the space (eg., among :,1,@CA) so that the output will be like</p>
  
  <pre><code>distance :400@CA :1@CA
  
  distance :400@CA :2@CA
  </code></pre>
  
  <p>I also tried using sep='' or end='' but still they don't work. Any suggestion will be appreciated.</p>