_container zodb pyramid keyerror

christopher@sirGranite:~/context/christopherReay/interface/pylons/pyramid/pyramid_virtualEnv/env/src/interface$ ../../bin/pshell development.ini
Python 2.7.3 (default, Aug  1 2012, 05:16:07)
Type "copyright", "credits" or "license" for more information.

IPython 0.13.1 -- An enhanced Interactive Python.
?         -> Introduction and overview of IPython's features.
%quickref -> Quick reference.
help      -> Python's own help system.
object?   -> Details about 'object', use 'object??' for extra details.

Environment:
  app          The WSGI application.
  registry     Active Pyramid registry.
  request      Active request object.
  root         Root of the default resource tree.
  root_factory Default root factory used to create `root`.

In [1]: root.
root.clear       root.get         root.iterkeys    root.popitem
root.copy        root.has_key     root.itervalues  root.setdefault
root.data        root.items       root.keys        root.update
root.fromkeys    root.iteritems   root.pop         root.values

In [1]: root.
root.clear       root.get         root.iterkeys    root.popitem
root.copy        root.has_key     root.itervalues  root.setdefault
root.data        root.items       root.keys        root.update
root.fromkeys    root.iteritems   root.pop         root.values

In [1]: root.data.values()
Out[1]: ---------------------------------------------------------------------------
KeyError                                  Traceback (most recent call last)
<ipython-input-1-9b78e308ce77> in <module>()
----> 1 root.data.values()

/home/christopher/context/christopherReay/interface/pylons/pyramid/pyramid_virtualEnv/env/local/lib/python2.7/site-packages/IPython/core/displayhook.pyc in __call__(self, result)
    236             self.start_displayhook()
    237             self.write_output_prompt()
--> 238             format_dict = self.compute_format_data(result)
    239             self.write_format_data(format_dict)
    240             self.update_user_ns(result)

/home/christopher/context/christopherReay/interface/pylons/pyramid/pyramid_virtualEnv/env/local/lib/python2.7/site-packages/IPython/core/displayhook.pyc in compute_format_data(self, result)
    148             MIME type representation of the object.
    149         """
--> 150         return self.shell.display_formatter.format(result)
    151
    152     def write_format_data(self, format_dict):

/home/christopher/context/christopherReay/interface/pylons/pyramid/pyramid_virtualEnv/env/local/lib/python2.7/site-packages/IPython/core/formatters.pyc in format(self, obj, include, exclude)
    124                     continue
    125             try:
--> 126                 data = formatter(obj)
    127             except:
    128                 # FIXME: log the exception

/home/christopher/context/christopherReay/interface/pylons/pyramid/pyramid_virtualEnv/env/local/lib/python2.7/site-packages/IPython/core/formatters.pyc in __call__(self, obj)
    445                 type_pprinters=self.type_printers,
    446                 deferred_pprinters=self.deferred_printers)
--> 447             printer.pretty(obj)
    448             printer.flush()
    449             return stream.getvalue()

/home/christopher/context/christopherReay/interface/pylons/pyramid/pyramid_virtualEnv/env/local/lib/python2.7/site-packages/IPython/lib/pretty.pyc in pretty(self, obj)
    343                 if cls in self.type_pprinters:
    344                     # printer registered in self.type_pprinters
--> 345                     return self.type_pprinters[cls](obj, self, cycle)
    346                 else:
    347                     # deferred printer

/home/christopher/context/christopherReay/interface/pylons/pyramid/pyramid_virtualEnv/env/local/lib/python2.7/site-packages/IPython/lib/pretty.pyc in inner(obj, p, cycle)
    527                 p.text(',')
    528                 p.breakable()
--> 529             p.pretty(x)
    530         if len(obj) == 1 and type(obj) is tuple:
    531             # Special case for 1-item tuples.

/home/christopher/context/christopherReay/interface/pylons/pyramid/pyramid_virtualEnv/env/local/lib/python2.7/site-packages/IPython/lib/pretty.pyc in pretty(self, obj)
    358                             if callable(meth):
    359                                 return meth(obj, self, cycle)
--> 360             return _default_pprint(obj, self, cycle)
    361         finally:
    362             self.end_group()

/home/christopher/context/christopherReay/interface/pylons/pyramid/pyramid_virtualEnv/env/local/lib/python2.7/site-packages/IPython/lib/pretty.pyc in _default_pprint(obj, p, cycle)
    478     if getattr(klass, '__repr__', None) not in _baseclass_reprs:
    479         # A user-provided repr.
--> 480         p.text(repr(obj))
    481         return
    482     p.begin_group(1, '<')

/home/christopher/context/christopherReay/interface/pylons/pyramid/pyramid_virtualEnv/env/lib/python2.7/UserDict.pyc in __repr__(self)
      8         if len(kwargs):
      9             self.update(kwargs)
---> 10     def __repr__(self): return repr(self.data)
     11     def __cmp__(self, dict):
     12         if isinstance(dict, UserDict):

/home/christopher/context/christopherReay/interface/pylons/pyramid/pyramid_virtualEnv/env/local/lib/python2.7/site-packages/persistent-4.0.5-py2.7-linux-i686.egg/persistent/mapping.pyc in __get__(self, inst, class_)
     28         if inst is None:
     29             return self
---> 30         return self.func(inst)
     31
     32

/home/christopher/context/christopherReay/interface/pylons/pyramid/pyramid_virtualEnv/env/local/lib/python2.7/site-packages/persistent-4.0.5-py2.7-linux-i686.egg/persistent/mapping.pyc in data(self)
     97         # if we're modified, then the saved record will have data, not
     98         # _container.
---> 99         data = self.__dict__.pop('_container')
    100         self.__dict__['data'] = data
    101

KeyError: '_container'

In [2]: root.data.values()