After installing roundup I get the following error message when I start
up PythonWin

 File
"C:\Python25\Lib\site-packages\pythonwin\pywin\framework\intpyapp.py",
line 181, in InitInstance
    import interact
  File
"C:\Python25\Lib\site-packages\pythonwin\pywin\framework\interact.py",
line 22, in <module>
    import pywin.scintilla.IDLEenvironment
  File
"C:\Python25\Lib\site-packages\pythonwin\pywin\scintilla\IDLEenvironment.py",
line 54, in <module>
    GetIDLEModule("AutoIndent").IndentSearcher.readline = fast_readline
  File
"C:\Python25\Lib\site-packages\pythonwin\pywin\scintilla\IDLEenvironment.py",
line 24, in GetIDLEModule
    __import__(modname)
  File
"C:\Python25\Lib\site-packages\pythonwin\pywin\idle\AutoIndent.py", line
503, in <module>
    import tokenize
  File "C:\Python25\Lib\tokenize.py", line 38, in <module>
    COMMENT = N_TOKENS
<type 'exceptions.NameError'>: name 'N_TOKENS' is not defined

Deleting the folder: C:\Python25\Lib\site-packages\roundup fixes the
problem.

Sorry but I have no idea what is happening here.

I assume by PythonWin you mean the editor from:

https://wiki.python.org/moin/PythonWin

but there is no info about the source of your python.

The traceback doesn't point to anything useful. Roundup doesn't
have an interact module.

Also at this point it's unlikely anybody is running python 2.5.

Closing as outdated.