[ZDP] BackTalk to Document The Zope Book (2.6 Edition)/Using Zope Page Templates

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A comment to the paragraph below was recently added via http://zope.org/Documentation/Books/ZopeBook/2_6Edition/ZPT.stx#2-71

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    You can also fix the date formatting problems with a little
    Python. Create a script named 'file_date' in your 'FileLib'
    folder::

      ## Script (Python) "file_date"
      ##
      """
      Return modification date as string YYYY/MM/DD
      """
      date=context.bobobase_modification_time()
      return "%s/%s/%s" % (date.year(), date.month(), date.day())

      % Anonymous User - Nov. 4, 2003 10:58 am:
       We are learning about TAL!!!

      % Anonymous User - Nov. 20, 2003 9:59 am:
       The name of the Python script is file_date
       The script was called by passing the value item/file_date to the tal:content attribute
       (tal:content="item/file_date")
       Because of the way the script was called, the builtin object context now references item which references a
       file?
       bobobase_modification_time() is another standards built in method?

       date=context.bobobase_modification_time() calls this method on the file which is referenced by item which is
       referenced by context?
       The rest is just fancy formatting?

       Am I on the right track?