title: Capitalise every other letter in a string in Python?
body: <p>I've been trying to define a function that will capitalise every other letter and also take spaces into accout for example:</p>
  
  <p><code>print function_name("Hello world")</code> should print <strong>"HeLlO wOrLd"</strong> rather than <strong>"HeLlO WoRlD"</strong></p>
  
  <p>I hope this makes sense. Any help is appreciated.</p>
  
  <p>Thanks, Oli</p>