title: How to set default style for widgets in pyGTK?
body: <p>I would like to set default style for all widgets in my application. I found <a href="http://www.pygtk.org/pygtktutorial/ch-settingwidgetattributes.html" rel="nofollow">this page</a> and read that there is <code>set_default_style()</code> function. The problem is I cannot find it anywhere. </p>
  
  <p>In witch package / module / class i can find this function?
  Is there any other way to avoid setting styles for every widget with <code>gtk.Widget.set_style()</code> method?</p>