Hi,
As there has not been any upgrades to the debian package, with regards to major
versions I decided to have a go at trying to find out the problems with the
current released version 4.1.1. I am not the debian maintainer, nor a debian
developer.
I am working out some details but one thing I have not been able
to bypass, and would like some advice :
The server fails in :
exceptions.RuntimeError: twisted.internet.addressalready loaded, cannot load
required backport
later other parts fail in :
exceptions.AttributeError: 'module' object has no attribute 'backport'
See backtrace below [1],[2]
I have tried to locate the problem, but I am so far stuck.
The __import__("twext") in caldav.py in twisted/plugins is supposed to
ensure that twisted get update with the new ipv6 modules that
the patches.py in twext is patching ?
Loading the twext.backport module dynamically standalone is possible [3].
I run debian sid with Twisted 12.0.0 but as far as I can tell without
the ipv6 patches that patches.py checks for.
The (wild) ideas I have so far:
- Twisted loads twisted.internet.tcp etc before starting caldav in version
12.0.0 ?
- The many different modules (groupcacher, caldavd, notifications) race to patch
twisted, and once it is done the others fails ?
- Some other package that happens to be in the python path confuses caldavd ?
I assume it is some simple bug, and if you have a hint to the direction
I will try to track it down. It can be that the configuration is out of date,
or a version problem with Debian sid.
I am trying to upgrade the standard configuration as well.
- I also have a vague memory that xmlfile directory is depricated/not up to
date/not recommended ? What is best to use for testing ?
I am using postgres as data backend and have already patches for debian done
(database_bootstrap).
If someone wants to help or try the changes I have made so far let me know.
Once I have a working package I will post the details.
Thank you
Fredrik Unger
[1]
2012-11-13 17:53:59+0100 [-] LimitingInheritingProtocolFactory starting on 8008
2012-11-13 17:54:00+0100 [-] [groupcacher] Unhandled Error
2012-11-13 17:54:00+0100 [-] [groupcacher] Traceback (most recent call last):
2012-11-13 17:54:00+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/application/app.py", line 647, in run
2012-11-13 17:54:00+0100 [-] [groupcacher] config.parseOptions()
2012-11-13 17:54:00+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/application/app.py", line 614, in
parseOptions
2012-11-13 17:54:00+0100 [-] [groupcacher] usage.Options.parseOptions(self,
options)
2012-11-13 17:54:00+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/python/usage.py", line 261, in
parseOptions
2012-11-13 17:54:00+0100 [-] [groupcacher] for (cmd, short, parser, doc) in
self.subCommands:
2012-11-13 17:54:00+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/application/app.py", line 631, in
subCommands
2012-11-13 17:54:00+0100 [-] [groupcacher] for plug in sorted(plugins,
key=attrgetter('tapname')):
2012-11-13 17:54:00+0100 [-] [groupcacher] --- <exception caught here> ---
2012-11-13 17:54:00+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/plugin.py", line 213, in getPlugins
2012-11-13 17:54:00+0100 [-] [groupcacher] adapted = interface(plugin, None)
2012-11-13 17:54:00+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/zope/interface/interface.py", line 631, in
_call_conform
2012-11-13 17:54:00+0100 [-] [groupcacher] return conform(self)
2012-11-13 17:54:00+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/plugin.py", line 68, in __conform__
2012-11-13 17:54:00+0100 [-] [groupcacher] return self.load()
2012-11-13 17:54:00+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/plugin.py", line 63, in load
2012-11-13 17:54:00+0100 [-] [groupcacher] return
namedAny(self.dropin.moduleName + '.' + self.name)
2012-11-13 17:54:00+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/python/reflect.py", line 463, in
namedAny
2012-11-13 17:54:00+0100 [-] [groupcacher] topLevelPackage =
_importAndCheckStack(trialname)
2012-11-13 17:54:00+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/python/reflect.py", line 400, in
_importAndCheckStack
2012-11-13 17:54:00+0100 [-] [groupcacher] return __import__(importName)
2012-11-13 17:54:00+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/plugins/caldav.py", line 17, in
<module>
2012-11-13 17:54:00+0100 [-] [groupcacher] __import__("twext") # install
patches before doing anything
2012-11-13 17:54:00+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twext/__init__.py", line 21, in <module>
2012-11-13 17:54:00+0100 [-] [groupcacher] from twext import patches
2012-11-13 17:54:00+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twext/patches.py", line 78, in <module>
2012-11-13 17:54:00+0100 [-] [groupcacher] _addBackports()
2012-11-13 17:54:00+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twext/patches.py", line 73, in _addBackports
2012-11-13 17:54:00+0100 [-] [groupcacher] tiname + "already loaded, cannot
load required backport")
2012-11-13 17:54:00+0100 [-] [groupcacher] exceptions.RuntimeError:
twisted.internet.addressalready loaded, cannot load required backport
[2]
2012-11-13 17:54:02+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/python/reflect.py", line 400, in
_importAndCheckStack
2012-11-13 17:54:02+0100 [-] [groupcacher] return __import__(importName)
2012-11-13 17:54:02+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/plugins/caldav.py", line 17, in
<module>
2012-11-13 17:54:02+0100 [-] [groupcacher] __import__("twext") # install
patches before doing anything
2012-11-13 17:54:02+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twext/__init__.py", line 21, in <module>
2012-11-13 17:54:02+0100 [-] [groupcacher] from twext import patches
2012-11-13 17:54:02+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twext/patches.py", line 78, in <module>
2012-11-13 17:54:02+0100 [-] [groupcacher] _addBackports()
2012-11-13 17:54:02+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twext/patches.py", line 68, in _addBackports
2012-11-13 17:54:02+0100 [-] [groupcacher] for submod in
backports.iterModules():
2012-11-13 17:54:02+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/python/modules.py", line 128, in
iterModules
2012-11-13 17:54:02+0100 [-] [groupcacher] for placeToLook in
self._packagePaths():
2012-11-13 17:54:02+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/python/modules.py", line 423, in
_packagePaths
2012-11-13 17:54:02+0100 [-] [groupcacher] load = self.load()
2012-11-13 17:54:02+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/python/modules.py", line 383, in load
2012-11-13 17:54:02+0100 [-] [groupcacher] return
self.pathEntry.pythonPath.moduleLoader(self.name)
2012-11-13 17:54:02+0100 [-] [groupcacher] File
"/usr/lib/python2.7/dist-packages/twisted/python/reflect.py", line 474, in
namedAny
2012-11-13 17:54:02+0100 [-] [groupcacher] obj = getattr(obj, n)
2012-11-13 17:54:02+0100 [-] [groupcacher] exceptions.AttributeError: 'module'
object has no attribute 'backport'
[3]
Python 2.7.3 (default, Sep 9 2012, 17:41:34)
[GCC 4.7.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> __import__("twext")
<module 'twext' from 'twext/__init__.pyc'>
>>> o= __import__("twext")
>>> ob = getattr(o, 'backport')
>>> print ob
<module 'twext.backport' from 'twext/backport/__init__.pyc'>
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