December 2009 - Zope-Dev

Bootstrapping ZCA for Python 3.
by Lennart Regebro 15 Dec '09

15 Dec '09

In the effort to port the component architecture to Python 3, some progress has been done. I think zope.interface and zope.exception is ready for some serious testing and zope.event is so trivial it doesn't need any testing. :) Time had therefore come to zope.testing. Why zope.testing? Because most components in zope.* uses zc.buildout, and zc.buildouts tests uses zope.testing. But of course we here have a bootstrapping problem, zope.testing of course also uses buildout. In zope.interface and zope.exception I fixed this by adding a test_suite parameter to setup(), so that the tests can be run with "python setup.py test". However, with zope.testing this doesn't work, for some reason. Many tests fail when you run the testing through setup.py, even though they work when run with a bin/test generated by setuptools. I'm stumped as to why this is, the changes are very strange, such as two temporary files being created in the buildout case, but only one in the setuptoold case. Very strange. Any insight into breaking this catch 22 is welcome, so we can port zope.testing to Python 3, and then get on to zc.buildout and then zope.component, and then the rest should be (in comparison) easy (although a lot of work). -- Lennart Regebro: Python, Zope, Plone, Grok http://regebro.wordpress.com/ +33 661 58 14 64

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zc.recipe.wrapper 1.0.1
by Alexander J Smith 15 Dec '09

15 Dec '09

Hi all, I just re-released zc.recipe.wrapper. The previous release lacked a corresponding svn tag. This release fixes that, and should be otherwise unremarkable. -- Alex Smith Software Engineer Zope Corporation

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Adapter for class with slots
by Wolfgang Schnerring 15 Dec '09

15 Dec '09

Hello, I've stumbled upon a wrinkly edge case (bug?) in zope.component. What I was trying to do is register an AbsoluteURL adapter for lovely.remotetask.processor.ProcessorRequest objects, and since they don't implement a specific interface, I thought I'd use the class itself as the required component. But registering the adapter for "* lovely.remotetask.processor.ProcessorRequest" fails with a strange TypeError (see below). The reason is that the class inherits from zope.publisher.base.BaseRequests which uses __slots__. The minimal reproduction recipe to see the error is this: class Slotted(object): __slots__ = ('__provides__') zope.component.provideAdapter( lambda x: True, (Slotted,), zope.interface.Interface) Which will raise File "/home/wosc/.python-eggs/zope.component-3.7.1-py2.6.egg/zope/component/registry.py", line 419, in _getAdapterRequired elif not ISpecification.providedBy(r): TypeError: 'member_descriptor' object is not callable Why is this? Can this be made to work? How would I go about investigating that? Thanks, Wolfgang

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Generations in Zope 2
by Christian Zagrodnick 15 Dec '09

15 Dec '09

Hi, to get generations working in Zope 2 the following subscriber is needed: @zope.component.adapter(zope.app.appsetup.IProcessStartingEvent) def evolve_minimum(event): zope.app.generations.generations.evolve( Zope2.DB, zope.app.generations.generations.EVOLVEMINIMUM) I think should become part of Zope 2 / Five. Objections? Regards, -- Christian Zagrodnick · cz(a)gocept.com gocept gmbh & co. kg · forsterstraße 29 · 06112 halle (saale) · germany http://gocept.com · tel +49 345 1229889 4 · fax +49 345 1229889 1 Zope and Plone consulting and development

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Zope Tests: 6 OK
by Zope Tests Summarizer 15 Dec '09

15 Dec '09

Summary of messages to the zope-tests list. Period Mon Dec 14 12:00:00 2009 UTC to Tue Dec 15 12:00:00 2009 UTC. There were 6 messages: 6 from Zope Tests. Tests passed OK --------------- Subject: OK : Zope-2.10 Python-2.4.6 : Linux From: Zope Tests Date: Mon Dec 14 20:38:30 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013197.html Subject: OK : Zope-2.11 Python-2.4.6 : Linux From: Zope Tests Date: Mon Dec 14 20:40:30 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013198.html Subject: OK : Zope-2.12 Python-2.6.4 : Linux From: Zope Tests Date: Mon Dec 14 20:42:30 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013199.html Subject: OK : Zope-2.12-alltests Python-2.6.4 : Linux From: Zope Tests Date: Mon Dec 14 20:44:30 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013200.html Subject: OK : Zope-trunk Python-2.6.4 : Linux From: Zope Tests Date: Mon Dec 14 20:46:30 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013201.html Subject: OK : Zope-trunk-alltests Python-2.6.4 : Linux From: Zope Tests Date: Mon Dec 14 20:48:30 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013202.html

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Zope2 book: who ripped out the docs on using ExternalMethods?
by Tres Seaver 14 Dec '09

14 Dec '09

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 There used to be a section in the "Advanced Zope Scripting" chapter which documented using External Methods: why is it gone now? Tres. - -- =================================================================== Tres Seaver +1 540-429-0999 tseaver(a)palladion.com Palladion Software "Excellence by Design" http://palladion.com -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAksmvG8ACgkQ+gerLs4ltQ55hQCfS2MPCetOILU7JS5ce0PBZCJb GVQAoIFv63t2UtMXeci4lUTmru+Dv1gV =CofU -----END PGP SIGNATURE-----

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zope.testing for Python 3.1
by Lennart Regebro 14 Dec '09

14 Dec '09

The py3k branch for zope.testing now mostly passes the tests as well: svn+ssh://regebro@svn.zope.org/repos/main/zope.testing/branches/regebro-python3-reloaded Two tests fail. One is for unicode, and doesn't make sense under Python 3. We can either remove it completely, but it does test a bugfix that was done in the custom doctest.py, and which I moved to a monkey-patch when I got rid of the doctest.py. We should probably make bugreports in the pythontracker for those monkey-patches to, but they still need to be there for current python versions, and should be tested. The other option is to extract it to a separate test, but since it's a doctest of a doctest that's a pain in the böm, so I haven't done that. The other test is the same obscure failure that exist under Python 2.7, indicating that this is an actual change in how Python behaves. Again it needs somebody who understands the Python internals involved and how they changed. -- Lennart Regebro: Python, Zope, Plone, Grok http://regebro.wordpress.com/ +33 661 58 14 64

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Zope Tests: 6 OK
by Zope Tests Summarizer 14 Dec '09

14 Dec '09

Summary of messages to the zope-tests list. Period Sun Dec 13 12:00:00 2009 UTC to Mon Dec 14 12:00:00 2009 UTC. There were 6 messages: 6 from Zope Tests. Tests passed OK --------------- Subject: OK : Zope-2.10 Python-2.4.6 : Linux From: Zope Tests Date: Sun Dec 13 20:38:20 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013191.html Subject: OK : Zope-2.11 Python-2.4.6 : Linux From: Zope Tests Date: Sun Dec 13 20:40:20 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013192.html Subject: OK : Zope-2.12 Python-2.6.4 : Linux From: Zope Tests Date: Sun Dec 13 20:42:20 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013193.html Subject: OK : Zope-2.12-alltests Python-2.6.4 : Linux From: Zope Tests Date: Sun Dec 13 20:44:20 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013194.html Subject: OK : Zope-trunk Python-2.6.4 : Linux From: Zope Tests Date: Sun Dec 13 20:46:20 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013195.html Subject: OK : Zope-trunk-alltests Python-2.6.4 : Linux From: Zope Tests Date: Sun Dec 13 20:48:20 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013196.html

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Zope.testing fails on Python 2.7
by Lennart Regebro 13 Dec '09

13 Dec '09

Just a FYI: A lot of classes have moved around in Python 2.7, meaning many tests failed on Python 2.7. I solved that, but there is one remaining error which completely escapes me, in the testing of the post-mortem debugging. Somebody that understands the internals of Python is needed for that one, to explain why local variables exist in one of the post-mortem tests, but not in the other one. -- Lennart Regebro: Python, Zope, Plone, Grok http://regebro.wordpress.com/ +33 661 58 14 64

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Zope Tests: 6 OK
by Zope Tests Summarizer 13 Dec '09

13 Dec '09

Summary of messages to the zope-tests list. Period Sat Dec 12 12:00:00 2009 UTC to Sun Dec 13 12:00:00 2009 UTC. There were 6 messages: 6 from Zope Tests. Tests passed OK --------------- Subject: OK : Zope-2.10 Python-2.4.6 : Linux From: Zope Tests Date: Sat Dec 12 20:38:38 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013185.html Subject: OK : Zope-2.11 Python-2.4.6 : Linux From: Zope Tests Date: Sat Dec 12 20:40:38 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013186.html Subject: OK : Zope-2.12 Python-2.6.4 : Linux From: Zope Tests Date: Sat Dec 12 20:42:38 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013187.html Subject: OK : Zope-2.12-alltests Python-2.6.4 : Linux From: Zope Tests Date: Sat Dec 12 20:44:38 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013188.html Subject: OK : Zope-trunk Python-2.6.4 : Linux From: Zope Tests Date: Sat Dec 12 20:46:38 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013189.html Subject: OK : Zope-trunk-alltests Python-2.6.4 : Linux From: Zope Tests Date: Sat Dec 12 20:48:38 EST 2009 URL: http://mail.zope.org/pipermail/zope-tests/2009-December/013190.html

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