title: NameError: name 'N_TOKENS' is not defined
body: <p>I am new on Python and just got around to install PyCharm for Windows. Downloaded some sample code from Skype for testing their SkypeKit API. But... As soon as I hit the debug button, I get this: (I have Python 2.7 and Django 1.4 installed)</p>
  
  <pre><code>Traceback (most recent call last):
    File "C:\Program Files (x86)\JetBrains\PyCharm 2.0.2\helpers\pydev\pydevd.py", line 2, in &lt;module&gt;
      from django_debug import DjangoLineBreakpoint
    File "C:\Program Files (x86)\JetBrains\PyCharm 2.0.2\helpers\pydev\django_debug.py", line 1, in &lt;module&gt;
      import inspect
    File "C:\Program Files (x86)\Python27\lib\inspect.py", line 39, in &lt;module&gt;
      import tokenize
    File "C:\Program Files (x86)\Python27\lib\tokenize.py", line 38, in &lt;module&gt;
      COMMENT = N_TOKENS
  NameError: name 'N_TOKENS' is not defined
  
  Process finished with exit code 1
  </code></pre>
  
  <p>What does this mean and what can I do to fix it?</p>