It was the dawn of the third age of Zope. The Five project was a dream given form. Its goal: to use Zope 3 technologies in Zope 2.7 by creating a Zope 2 product where Zope 3 and Zope 2 could work out their differences peacefully.
(Babylon 5 season 1 intro, creatively quoted)
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Motto 2
The Law of Fives states simply that: ALL THINGS HAPPEN IN FIVES, OR ARE DIVISIBLE BY OR ARE MULTIPLES OF FIVE, OR ARE SOMEHOW DIRECTLY OR INDIRECTLY RELATED TO FIVE.
It was the dawn of the third age of Zope. The Five project was a dream given form. Its goal: to use Zope 3 technologies in Zope 2.7 by creating a Zope 2 product where Zope 3 and Zope 2 could work out their differences peacefully.
(Babylon 5 season 1 intro, creatively quoted)
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Motto 2
The Law of Fives states simply that: ALL THINGS HAPPEN IN FIVES, OR ARE DIVISIBLE BY OR ARE MULTIPLES OF FIVE, OR ARE SOMEHOW DIRECTLY OR INDIRECTLY RELATED TO FIVE.
THE LAW OF FIVES IS NEVER WRONG.
(Principia Discordia)
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The problem
We're using Zope 2 in production
Zope 2 is showing its age
Zope 3 has better ways to do things
But can't just switch, we have codebases, customers!
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Benefits of using Zope 3 in Zope 2
Able to use Zope 3 technologies right away
Don't reinvent the wheel/APIs
Better prepared for Zope 3 transition
Evolution, not revolution
Convergence, not divergence (this is important)
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Divergence
Infrae created Silva, Nuxeo CPS, etc
Everybody else started using Plone (why?!)
I want to use cool Plone technology
Silva is cool too, you may want to use it
I don't want to have to reinvent every wheel (just some)
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What's stopping us from sharing?
Zope 2 components are hard to share between apps
Even CMF components need work to share
Especially if you don't use CMF... (Silva)
Zope 2 framework burden is making it hard
Clean Python code is easier to share
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Convergence
Unify our diverse efforts
Zope 3 allows you to write Python, less framework sacrifices
Zope 3 allows the glueing of components
Zope 3 is the future
Five makes some of the future available today
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What works now? - an overview
Interfaces
Schema
ZCML
Adapters
Views, including layers, skins
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What works now, continued
Zope 3 page template engine
Traversal, resources
Zope 2 security from ZCML
Events
Beginnings of forms machinery
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Progress made since June
Initial announcement at Europython
As promised, moved to SVN at codespeak.net
Got website, mailing list
People joined the project
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Progress made since June, continued
Lots of excellent contributions!
Much better view infrastructure (traversal)
ZCML's interaction with Zope 2 products much improved
UnionCMS and other projects are starting to use it!
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The Zope 3 Base
Five is part of the Zope 3 Base
Zope 3 Base - All Your Bobobase Are Belong To Us
Possibly the cutest Zope 3 website anywhere
http://codespeak.net/z3
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Zope 3 Base
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%image "z3-banner.png"
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Zope 3 Base, continued
Second area of Zope 3 related development
Equivalent of Plone collective, for Zope 3
More freewheeling than dev.zope.org
Less freewheeling than Plone collective, however
Cuter than both
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Evolution: Five-ification
Five is not just for new Zope 2 projects
Five can interoperate with existing Zope 2 applications