NameError: name 'N_TOKENS' is not defined

Question

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)

Traceback (most recent call last):
  File "C:\Program Files (x86)\JetBrains\PyCharm 2.0.2\helpers\pydev\pydevd.py", line 2, in <module>
    from django_debug import DjangoLineBreakpoint
  File "C:\Program Files (x86)\JetBrains\PyCharm 2.0.2\helpers\pydev\django_debug.py", line 1, in <module>
    import inspect
  File "C:\Program Files (x86)\Python27\lib\inspect.py", line 39, in <module>
    import tokenize
  File "C:\Program Files (x86)\Python27\lib\tokenize.py", line 38, in <module>
    COMMENT = N_TOKENS
NameError: name 'N_TOKENS' is not defined

Process finished with exit code 1

What does this mean and what can I do to fix it?

Answer 1

The tokenize.py module is probably loading the wrong token.py module. See error importing numpy. Solution 1) rename the new token.py (token2.py) and update references to it in tokenize.py etc. Solution 2) if the new token.py is in a python package you can disambiguate the import statement:

import CorrectPythonPackage.token as token2

#or 

from CorrectPythonPackage.token import *

Where CorrectPythonPackage is the folder name containing the token.py file.