title: Playing sound on a Nao Robot with python
body: <p>How can we play a sound on the Nao robot using python and naoqisdk.<br/>
  The wav file should be placed on the NAO</p>
  
  <p>error : </p>
  
  <blockquote>
    <p>can't load file is popping up each time we start the script</p>
  </blockquote>