[Zope] getitem from python

Please excuse this newbie question: How do I refer to an object from a variable in a python script? eg: Have a document named 'mydoc' in the current folder where this script lives: print context.mydoc.title_or_id() works but I want fred = 'mydoc' print context.fred.title_or_id() which obviously doesn't. So I need to turn the string 'mydoc' into an object reference. Something like the dtml 'getitem'?? -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Roman Bogoyev, Computer Systems Manager, email: roman@maths.uwa.edu.au UWA Maths, 35 Stirling Hwy, Crawley, phone: +61 8 9380 3379 Western Australia 6009 fax: +61 8 9380 1028