title: module object has no attribute 'Screen'
body: <p>I am teaching myself python from <a href="http://openbookproject.net/thinkcs/python/english3e/" rel="noreferrer">this site</a>. On <a href="http://openbookproject.net/thinkcs/python/english3e/ch03.html" rel="noreferrer">Chapter 3</a>, when I typed the code in the given example, I got the following error--</p>
  
  <pre><code>Python 3.2 (r32:88445, Mar 25 2011, 19:28:28) 
  [GCC 4.5.2] on linux2
  Type "help", "copyright", "credits" or "license" for more information.
  &gt;&gt;&gt; import turtle
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
    File "turtle.py", line 2, in &lt;module&gt;
      wn = turtle.Screen()
  AttributeError: 'module' object has no attribute 'Screen'
  &gt;&gt;&gt; 
  </code></pre>
  
  <p>Is this something that I need to download and install? I tried looking into docs.python.org, but my nose started to bleed reading all that tech stuff. 
  Kindly point me in the right direction please? Thank you.</p>