I'm planning on making a website with Zope, and plan to do a lot of custumization.
Should I learn Zope 2 or Zope 3?
If it's from scratch and you don't need any existing third-party Products, then probably Zope 3.
Zope 2.8 will include Five, which makes Zope 3-style stuff available in Zope 2: http://codespeak.net/z3/five/index.html
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