[Zope] String .lower, .upper, and .title in a Python Script

Okay, here is a strange bit of behavior in a Zope (and python for that matter, as I'm working with a python script. In the string module, there is: .lower(), .upper(), .capitalize(), and .title(). In a python script... myStr = string.lower(myStr) # Works! myStr = string.upper(myStr) # Works! myStr = string.capitalize(myStr) # Works! myStr = string.title(myStr) # DOES NOT WORK! If you look up .title() in the python manual (its on page 8 of the Library Reference Manual), it has .title() as one of the string functions (presumably in the string module). Unfortunately, if I run .title() in my stript, I get an AttributeError for "title". Not so with the others. Am I missing something? TIA, Ron