Allmost this works: user = container.REQUEST.AUTHENTICATED_USER.getUserName()

REQUEST.AUTHENTICATED_USER method is not advised by the zope documentation:

From your zope installation\lib\python\PRODUCTS\OFSP\help\dtml-funcs.stx:

SecurityGetUser() -- Return the current user object. This is normally the same as the 'REQUEST.AUTHENTICATED_USER' object. However, the 'AUTHENTICATED_USER' object is insecure since it can be replaced.

From the book chapter 6, performing security checks:

<dtml-var expr="_.SecurityGetUser().getUserName()"> You can retrieve the currently logged in user with the SecurityGetUser etc.. However, i was not able to use this function from within a pythonscript. I am sure somebody else can do that, i am interested in the solution, so if you have one... Met vriendelijke groeten, Hans de Wit Stichting Farmaceutische Kengetallen Postbus 30460 2500 GL DEN HAAG Tel. 070-3737448 Fax 070-3737445