All- I run Plone2 over zope2.7 on a linux box. We have multiple python intances on our linux box. As zope is very picky about the python version, we have a python instance only for a zope. Also, we have our own applications in python (unrelated to zope) which need 3rd party modules. For that we have a different python binary at a different location. From zope's python I want to use the modules we developed and installed on the other python intance. So, I added the /usr/lib/python2.2/site-packages, the python for our local use, to PYTHONPATH by exporting PYTHONPATH from bash_profile. Invoking the script from the command line with zope's python works without an import error. However, zope/Plone combo wont startup with zopectl if I use one of those modules in a basic zope product I am trying to develop. It throws an ImportError. Am I missing something? Isnt it supposed to work that way? I realized maybe I need to make that change to PYTHONPATH in zope's startup script. So, I have changed the "zopectl" used to start zope+plone now, and printed the PYTHONPATH by using "env | grep PYTHONPATH" in the zopectl script. It is being set to what I want. However, the ImportError persists from zope's startup. I am surprised why it works, when I run the script that does the import, from the commandline and why it wont from zope's startup although the same PYTHONPATH is being set. The error being thrown. 2004-09-20T10:03:36 ERROR(200) Zope Could not import Products.plots Traceback (most recent call last): File "/home/accts/zope/Zope-2.7.0/lib/python/OFS/Application.py", line 654, in import_product product=__import__(pname, global_dict, global_dict, silly) File "/home/accts/zope/srcczope/Products/plots/__init__.py", line 1, in ? import plots File "/home/accts/zope/srcczope/Products/plots/plots.py", line 3, in ? from mx import DateTime ImportError: cannot import name DateTime Traceback (most recent call last): File "/home/accts/zope/Zope-2.7.0/lib/python/Zope/Startup/run.py", line 49, in ? run() File "/home/accts/zope/Zope-2.7.0/lib/python/Zope/Startup/run.py", line 19, in run start_zope(opts.configroot) File "/home/accts/zope/Zope-2.7.0/lib/python/Zope/Startup/__init__.py", line 51, in start_zope starter.startZope() File "/home/accts/zope/Zope-2.7.0/lib/python/Zope/Startup/__init__.py", line 230, in startZope Zope.startup() File "/home/accts/zope/Zope-2.7.0/lib/python/Zope/__init__.py", line 46, in startup _startup() File "/home/accts/zope/Zope-2.7.0/lib/python/Zope/App/startup.py", line 45, in startup OFS.Application.import_products() File "/home/accts/zope/Zope-2.7.0/lib/python/OFS/Application.py", line 631, in import_products import_product(product_dir, product_name, raise_exc=debug_mode) File "/home/accts/zope/Zope-2.7.0/lib/python/OFS/Application.py", line 654, in import_product product=__import__(pname, global_dict, global_dict, silly) File "/home/accts/zope/srcczope/Products/plots/__init__.py", line 1, in ? import plots File "/home/accts/zope/srcczope/Products/plots/plots.py", line 3, in ? from mx import DateTime ImportError: cannot import name DateTime