[Zope] ImportError: cannot import name base_hasattr

[tonylabarbara at aol.com]

Hi:
This really should go to the Plone list, but seeing as how I can't hit their site from either of my browsers, how can I subscribe to the list? I couldn't download Plone, either, so I just built it from tarballs from an earlier installation, tarballing all the products associated with it (Plone 2.1.4, I think). Then I loaded them up in Zope 2.7.8 and got this error:
 
Traceback (most recent call last):
  File "/usr/local/www/zope/278/lib/python/OFS/Application.py", line 673, in import_product
  File "/usr/local/zope/instance1/Products/ATContentTypes/__init__.py", line 54, in ?
    import Products.ATContentTypes.content
  File "/usr/local/zope/instance1/Products/ATContentTypes/content/__init__.py", line 34, in ?
    import Products.ATContentTypes.content.topic
  File "/usr/local/zope/instance1/Products/ATContentTypes/content/topic.py", line 33, in ?
    from Products.CMFPlone.CatalogTool import CatalogTool
  File "/usr/local/zope/instance1/Products/CMFPlone/CatalogTool.py", line 27, in ?
    from Products.CMFPlone.utils import base_hasattr
ImportError: cannot import name base_hasattr
Traceback (most recent call last):
  File "/usr/local/zope/278/lib/python/Zope/Startup/run.py", line 50, in ?
    run()
  File "/usr/local/zope/278/lib/python/Zope/Startup/run.py", line 19, in run
    start_zope(opts.configroot)
  File "/usr/local/zope/278/lib/python/Zope/Startup/__init__.py", line 52, in start_zope
    starter.startZope()
  File "/usr/local/zope/278/lib/python/Zope/Startup/__init__.py", line 231, in startZope
    Zope.startup()
  File "/usr/local/zope/278/lib/python/Zope/Startup/__init__.py", line 47, in startup
    # drop privileges after setting up servers
  File "/usr/local/www/zope/278/lib/python/Zope/App/startup.py", line 45, in startup
  File "/usr/local/www/zope/278/lib/python/OFS/Application.py", line 650, in import_products
  File "/usr/local/www/zope/278/lib/python/OFS/Application.py", line 673, in import_product
  File "/usr/local/zope/instance1/Products/ATContentTypes/__init__.py", line 54, in ?
    import Products.ATContentTypes.content
  File "/usr/local/zope/instance1/Products/ATContentTypes/content/__init__.py", line 34, in ?
    import Products.ATContentTypes.content.topic
  File "/usr/local/zope/instance1/Products/ATContentTypes/content/topic.py", line 33, in ?
    from Products.CMFPlone.CatalogTool import CatalogTool
  File "/usr/local/zope/instance1/Products/CMFPlone/CatalogTool.py", line 27, in ?
    from Products.CMFPlone.utils import base_hasattr
ImportError: cannot import name base_hasattr

CMFPlone/utils.py has a class named base_hasattr, so what's the problem? Perhaps I need to delete all the *.pyc files from the other server from which I copied all these products? (Lot of work, avoiding that since I'm not sure it's necessary, and there aren't any in CMFPlone anyway.)
TIA,
Tony
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