[Zope] the name of the 'user' running zope

Hi dears, Is there a way (method or attribute) of getting the string for the 'user' running zope? Many thanks in advance. Alan -- Alan Wilter S. da Silva, D.Sc. - CCPN Research Associate Department of Biochemistry, University of Cambridge. 80 Tennis Court Road, Cambridge CB2 1GA, UK.

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http://www.bio.cam.ac.uk/~awd28<<;