Dear List, having the following objects: sourceFolder points to a LocalFS-Instance, fileId points to a file in the LocalFS-Instance, and convert_nonascii_1(string) is just a method to exchange some text in string. in DTML I can do the following: <dtml-var "convert_nonascii_1(_.str(_.getitem(sourceFolder, 1)[fileId]))" fmt=structured-text> But how is it done in Python Script? if myLFSname is the name of the LocalFS-Instance and file.txt the name of a file in the LocalFS-Instance this works fine: context.myLFSname['file.txt']() But as soon as I try to do it with sourceFolder and fileId, I get only errors even if the Script can resolve both. Does anybody know why? And how do I use structured Text in Python Script as in DTML: <dtml-var my Var fmt=structured-text> Thanks a lot for your help, Elena