[Modeling-users] Problems importing Modeling with ZODB 3.1.1 installed

[Ernesto R. <er...@si...>]

Hi,

just a little note if this issue haven't arosen yet.

I've standalone ZODB 3.1.1 installed, running under Python 2.2 / Win32.

When I do a=20
from Modeling.PyModel import *

I get the following error:
  File "<stdin>", line 1, in ?
  File "c:\prg\python22\Lib\site-packages\Modeling\PyModel.py", line 57, =
in ?
    from Entity import externalNameForInternalName
  File "c:\prg\python22\Lib\site-packages\Modeling\Entity.py", line =
1442, in ?
    finalize_docstrings(Entity, ENTITY_DOC)
  File "c:\prg\python22\Lib\site-packages\Modeling\utils.py", line 166, =
in finalize_docstrings
    for n,m in inspect.getmembers(klass, inspect.ismethod):
  File "c:\prg\python22\lib\inspect.py", line 161, in getmembers
    value =3D getattr(obj, key)
AttributeError: __call__

In Entity.py, Entity  will now be a extension class, because of =
Persistent (which is cPersistence.Persistent) and dir exposes an =
attribute __call__, that when doing a getattr(Entity,'__call__') fails =
in inspect.getmembers, inside the Python standard lib.

To circumvate this I put a quick and dirty:
raise 'Don't use ZODB'=20

near line 113 of Entity.py, in order to avoid ZODB Persistence =
mechanism. Perhaps, this is a bug in Python 2.2 because:
>>> import ZODB
>>> from Persistence import Persistent
>>> dir(Persistent)
['__basicnew__', '__call__', '__changed__', '__delattr__', '__doc__', =
'__getattr__', '__getstate__', '__init__', '__module__', '__reduce__', =
'__repr__', '__setattr__', '__setstate__', '_p_deactivate', =
'inheritedAttribute']
>>> getattr(Persistent,'__call__')
Traceback (most recent call last):
  File "<interactive input>", line 1, in ?
AttributeError: __call__
>>>

I'll try Python 2.2.3 and tell you if the error persist.

Erny