[Zope] None Object and None String

[Asad Habib]

I have a Zope session variable that is set to None. When I update my MySQL
database and set the value of one of my fields to the value of this
session variable, the value is set to the string 'None'. Anyone
encountered a similar problem? I would think that the None object would
translate to the NULL database constant and not the string with value
'None'. Any help would be appreciated. Thanks.

- Asad