[Zope] how do i make a python script ?

[Sven Fischer]

hello,

i have this z-class with a text element and i'd like to parse this text
before displaying it ? say, evrytime there is "zope" written in it i'd like
to replace it on the fly with <b>zope</b>.

i think the right direction to look at is a script (a pythonscript ?) that
would be called as a method on this element. am i right or a i wrong ? what
would the best starting point be ?

thx

$ven