[Zope] Python Script Problem

[Chris Withers]

The following code:

    chars = '23456789'
    chars = chars + 'ABCDEFGHJKLMNPQRSTUVWXYZ'
    chars = chars + 'abcdefghijkmnopqrstuvwxyz'
    chars = list(chars)

gives me:

  File
/usr/local/zope/Zope-2.3.1b1-src/lib/python/Products/PythonScripts/Guarded.py,
line 189, in __careful_list__
TypeError: cannot convert string to list

What could be insecure abotu turning a string into a list of characters?!

cheers,

Chris