将plone.app.dexterity添加到plone4.3buildout后出错

Question

我使用https://github.com/plone/plonedev.vagrant在Windows上设置了plone4.3开发环境。我一直试图在我的安装中增加灵巧的支持，但是遇到了问题。

我所采取的步骤如下：

1. 添加了zopeskel.dexterity和plone.app.dexterity的关系，在“我的buildout.cfg”的蛋类部分中添加了
2. 将ZopeSkel <= 2.99添加到buildout.cfg的版本部分

我重新运行buildout并尝试在前台模式下启动服务器，但是获得以下跟踪：

vagrant@precise32:~$ ./runbin.sh plonectl fg                                                                                                                                                                                       
instance: Traceback (most recent call last):                                                                                                                                                                                       
  File "/home/vagrant/Plone/zinstance/bin/instance", line 290, in <module>                                                                                                                                                         
    import plone.recipe.zope2instance.ctl                                                                                                                                                                                          
  File "/home/vagrant/Plone/buildout-cache/eggs/plone.recipe.zope2instance-4.2.9-py2.7.egg/plone/recipe/__init__.py", line 1, in <module>                                                                                          
    __import__('pkg_resources').declare_namespace(__name__)                                                                                                                                                                        
  File "/home/vagrant/Plone/buildout-cache/eggs/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 2835, in <module>                                                                                                              
    add_activation_listener(lambda dist: dist.activate())                                                                                                                                                                          
  File "/home/vagrant/Plone/buildout-cache/eggs/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 704, in subscribe                                                                                                              
    callback(dist)                                                                                                                                                                                                                 
  File "/home/vagrant/Plone/buildout-cache/eggs/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 2835, in <lambda>                                                                                                              
    add_activation_listener(lambda dist: dist.activate())                                                                                                                                                                          
  File "/home/vagrant/Plone/buildout-cache/eggs/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 2262, in activate                                                                                                              
    map(declare_namespace, self._get_metadata('namespace_packages.txt'))                                                                                                                                                           
  File "/home/vagrant/Plone/buildout-cache/eggs/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 1847, in declare_namespace                                                                                                     
    _handle_ns(packageName, path_item)                                                                                                                                                                                             
  File "/home/vagrant/Plone/buildout-cache/eggs/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 1817, in _handle_ns                                                                                                            
    loader.load_module(packageName); module.__path__ = path                                                                                                                                                                        
  File "/usr/lib/python2.7/pkgutil.py", line 246, in load_module                                                                                                                                                                   
    mod = imp.load_module(fullname, self.file, self.filename, self.etc)                                                                                                                                                            
  File "/home/vagrant/Plone/buildout-cache/eggs/ZopeSkel-2.21.2-py2.7.egg/zopeskel/__init__.py", line 2, in <module>                                                                                                               
    from zopeskel.basic_namespace import BasicNamespace                                                                                                                                                                            
  File "/home/vagrant/Plone/buildout-cache/eggs/ZopeSkel-2.21.2-py2.7.egg/zopeskel/basic_namespace.py", line 2, in <module>                                                                                                        
    from zopeskel.vars import var, DottedVar, StringVar, BooleanVar, TextVar                                                                                                                                                       
  File "/home/vagrant/Plone/buildout-cache/eggs/ZopeSkel-2.21.2-py2.7.egg/zopeskel/vars.py", line 2, in <module>                                                                                                                   
    from paste.script.templates import var as base_var                                                                                                                                                                             
ImportError: No module named script.templates

编辑:我忘了提到buildout.cfg扩展了base.cfg，它包含以下内容：

[zopeskel]
# installs paster and Zopeskel
recipe = zc.recipe.egg
eggs =
    ZopeSkel
    Paste
    PasteDeploy
    PasteScript
    ${buildout:eggs}

我刚刚尝试显式地将PasteScript添加到buildout.cfg中的鸡蛋部分。在运行buildout并尝试启动服务器之后，我得到了一个不同的跟踪：

vagrant@precise32:~$ ./runbin.sh plonectl fg                                                                                                                                                                                       
instance: Traceback (most recent call last):                                                                                                                                                                                       
  File "/home/vagrant/Plone/zinstance/bin/instance", line 291, in <module>                                                                                                                                                         
    import plone.recipe.zope2instance.ctl                                                                                                                                                                                          
  File "/home/vagrant/Plone/buildout-cache/eggs/plone.recipe.zope2instance-4.2.9-py2.7.egg/plone/recipe/__init__.py", line 1, in <module>                                                                                          
    __import__('pkg_resources').declare_namespace(__name__)                                                                                                                                                                        
  File "/home/vagrant/Plone/buildout-cache/eggs/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 2835, in <module>                                                                                                              
    add_activation_listener(lambda dist: dist.activate())                                                                                                                                                                          
  File "/home/vagrant/Plone/buildout-cache/eggs/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 704, in subscribe                                                                                                              
    callback(dist)                                                                                                                                                                                                                 
  File "/home/vagrant/Plone/buildout-cache/eggs/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 2835, in <lambda>                                                                                                              
    add_activation_listener(lambda dist: dist.activate())                                                                                                                                                                          
  File "/home/vagrant/Plone/buildout-cache/eggs/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 2262, in activate                                                                                                              
    map(declare_namespace, self._get_metadata('namespace_packages.txt'))                                                                                                                                                           
  File "/home/vagrant/Plone/buildout-cache/eggs/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 1847, in declare_namespace                                                                                                     
    _handle_ns(packageName, path_item)                                                                                                                                                                                             
  File "/home/vagrant/Plone/buildout-cache/eggs/distribute-0.6.28-py2.7.egg/pkg_resources.py", line 1817, in _handle_ns                                                                                                            
    loader.load_module(packageName); module.__path__ = path                                                                                                                                                                        
  File "/usr/lib/python2.7/pkgutil.py", line 246, in load_module                                                                                                                                                                   
    mod = imp.load_module(fullname, self.file, self.filename, self.etc)                                                                                                                                                            
  File "/home/vagrant/Plone/buildout-cache/eggs/ZopeSkel-2.21.2-py2.7.egg/zopeskel/__init__.py", line 2, in <module>                                                                                                               
    from zopeskel.basic_namespace import BasicNamespace                                                                                                                                                                            
  File "/home/vagrant/Plone/buildout-cache/eggs/ZopeSkel-2.21.2-py2.7.egg/zopeskel/basic_namespace.py", line 2, in <module>                                                                                                        
    from zopeskel.vars import var, DottedVar, StringVar, BooleanVar, TextVar                                                                                                                                                       
  File "/home/vagrant/Plone/buildout-cache/eggs/ZopeSkel-2.21.2-py2.7.egg/zopeskel/vars.py", line 2, in <module>                                                                                                                   
    from paste.script.templates import var as base_var                                                                                                                                                                             
  File "/vagrant/plone/src/hello.world/PasteScript-1.7.5-py2.7.egg/paste/script/templates.py", line 9, in <module>                                                                                                                 
    from paste.util.template import paste_script_template_renderer                                                                                                                                                                 
ImportError: No module named util.template

这是我的Python路径的问题吗？我运行了bin/zopepy，然后执行了import paste;print paste.__file__，输出是：

/vagrant/plone/src/hello.world/PasteScript-1.7.5-py2.7.egg/paste/__init__.pyc

粘贴-1.7.5.1鸡蛋目录确实包含一个粘贴/util/template.py文件，但看起来解释器找不到它。

Answer 1

您不需要在Plone 4.3中增加灵巧性，它已经包括：

• http://plone.org/products/plone/releases/4.3

Answer 2

正如 PyPI page上记录的那样，您也需要包含PasteScript蛋；跟踪显示它丢失了：

[zopeskel]
recipe = zc.recipe.egg
eggs =
   ZopeSkel < 3.0dev
   Paste
   PasteDeploy
   PasteScript
   zopeskel.dexterity
   ${buildout:eggs}

Answer 3

你可能做了比你需要做的更多的工作。plonedev.vagrant工具包附带zopeskel和zopeskel.dexterity预装。请看这份成绩单：

steve@lumpy:~/plonedev_vagrant$ vagrant up
[default] Importing base box 'precise32'...
...
steve@lumpy:~/plonedev_vagrant$ vagrant ssh
Welcome to Ubuntu 12.04.2 LTS (GNU/Linux 3.2.0-48-generic i686)
...
vagrant@vagrant-ubuntu-precise-32:~/Plone/zinstance$ ll bin
...
-rwxr-xr-x 1 vagrant vagrant 20023 Jul 16 01:41 zopeskel*
...
vagrant@vagrant-ubuntu-precise-32:~/Plone/zinstance$ cd src
...
vagrant@vagrant-ubuntu-precise-32:~/Plone/zinstance/src$ ~/Plone/zinstance/bin/zopeskel dexterity

dexterity: A Dexterity-based product
...

其中有一点神奇之处:由于plonedev.vagrant工具包象征性地链接了src目录，所以不能使用“./bin/zopeskel”。这就是使用"~/Plone/zinstance/bin/zopeskel灵巧度“命令的原因。

我们要么把这个奇怪的东西记录下来，要么想办法避免它。