[ZDP] BackTalk to Document The Zope Book (2.5 Edition)/Creating Basic Zope Applications

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A comment to the paragraph below was recently added via http://www.zope.org/Documentation/Books/ZopeBook/current/SimpleExamples.stx#3-35

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      Now the method tests to see if the current object has any parents
      before it display a link to the parent. *PARENTS* is a list of the
      current object's parents, and *len* is a utility function which
      returns the length of a list. See Appendix A for more information
      on DTML utility functions. Now view the site. Notice that now
      there is no parent link when you're viewing the main zoo page.

        % Anonymous User - Sep. 22, 2002 11:07 am:
         "_" is DTMLs namespace variable (where names are looked up).
         Usually this is a default, hence doesnt show up.