我下载了zope 2.8.0 final win32的exe版本。
安装后发现无法启动zope instance。
提示：
  File "D:\python_home\Zope-2.8.0-final\lib\python\datetime\DateTime.py", line 2
1, in ?
    from datetime import datetime
ImportError: cannot import name datetime

这是trace back的最后一条，好像是导入datetime模块有问题，应该怎样设置呢？

我安装的目录结构如下：
zope程序：D:\python_home\Zope-2.8.0-final
zope instance: d:\python_home\test_zop

在这之前，我的系统已经安装过python 2.3和python 2.4，应该不是这个问题吧？

下面是完整的traceback信息：

D:\python_home\test_zop>bin\runzope.bat

D:\python_home\test_zop>"D:\python_home\Zope-2.8.0-final\bin\python.exe"
"D:\python_home\Zope-2.8.0-final\lib\python\Zope2\Startup\run.py" -C
"d:\python_home\te
st_zop\etc\zope.conf"
D:\python_home\Zope-2.8.0-final\bin\lib\fcntl.py:7: DeprecationWarning: the FCNT
L module is deprecated; please use fcntl
  DeprecationWarning)
Traceback (most recent call last):
  File "D:\python_home\Zope-2.8.0-final\lib\python\Zope2\Startup\run.py", line 5
6, in ?
    run()
  File "D:\python_home\Zope-2.8.0-final\lib\python\Zope2\Startup\run.py", line 1
7, in run
    import Zope2.Startup
  File "D:\python_home\Zope-2.8.0-final\lib\python\Zope2\__init__.py", line 60,
in ?
    from Zope2.Startup.run import configure
  File "D:\python_home\Zope-2.8.0-final\lib\python\Zope2\Startup\__init__.py", l
ine 24, in ?
    import ZConfig
  File "D:\python_home\Zope-2.8.0-final\lib\python\ZConfig\__init__.py", line 21
, in ?
    from ZConfig.loader import loadConfig, loadConfigFile
  File "D:\python_home\Zope-2.8.0-final\lib\python\ZConfig\loader.py", line 23,
in ?
    import ZConfig.datatypes
  File "D:\python_home\Zope-2.8.0-final\lib\python\ZConfig\datatypes.py", line 1
9, in ?
    import datetime
  File "D:\python_home\Zope-2.8.0-final\lib\python\datetime\__init__.py", line 1
3, in ?
    from DateTime import DateTime
  File "D:\python_home\Zope-2.8.0-final\lib\python\datetime\DateTime.py", line 2
1, in ?
    from datetime import datetime
  File "D:\python_home\Zope-2.8.0-final\lib\python\datetime\DateTime.py", line 2
1, in ?
    from datetime import datetime
ImportError: cannot import name datetime