Hi, I just got OpenFlow1.1.0 downloaded. But didn't know the steps to install. But as I extracted Openflow source tar ball in Zope's lib/python/Products directory, it created .pyc files for instance.py, activity.py, openflow.py, process.py, transition.py & workitem.py. & so because of that I thought that openflow is installed. But after that I was not able to see that in the Products dir of Zope Management Interface screen. So after that I implemented the solution that u gave me in your last mail i.e. to change a line (from Products.PageTemplates.Expressions import getEngine, _SecureModuleImporter) in expression.py file. After doing this & restarting zope now I am able to see the openflow on ZMI. Thanks a Lot for Ur invaluable help. After all this, I imported my project's code from live server to the development server (Please note that now I am in the process of setting up development env set up). But after importing the entire project code from live to dev server, on ZMI for OpenFlow it is giving error as 'Openflow Product is broken', while on live server it works perfectly. Only after importing code on dev server ZMI it is showing this error.Pls note that I am importing my project code in binary form (i.e. in .zexp format). On LINUX dev server, I started zope as (./zopectl fg) while doing all the above stuff. It showed the below error - ------------------------------------------------------------------------ ------------------------------------------------------------------------ ------------------------------------------------------------------------ ------------------------------------------------------------------------ -------------------------------------- [test@test bin]$. /zopectl fg /opt/zope/bin/runzope -X debug-mode=on 2010-11-30 20:23:33 INFO ZServer HTTP server started at Tue Nov 30 20:23:33 2010 Hostname: 0.0.0.0 Port: 8080 2010-11-30 20:23:33 WARNING Init Class Products.openflow-engine.instance.instanc method 'History' 2010-11-30 20:23:33 WARNING Init Class Products.openflow-engine.instance.instanc method 'History' 2010-11-30 20:23:33 WARNING Init Class Products.openflow-engine.activity.activit method 'editActivity' 2010-11-30 20:23:33 WARNING Init Class Products.openflow-engine.transition.transent method 'editTransition' 2010-11-30 20:23:33 WARNING Init Class Products.openflow-engine.transition.transent method 'editTransition' 2010-11-30 20:23:33 WARNING Init Class Products.openflow-engine.process.process method 'Map' 2010-11-30 20:23:33 WARNING Init Class Products.openflow-engine.process.process method 'Map' /opt/zope/lib/python/OFS/Application.py:809: DeprecationWarning: __init__.py of mehods' attribute. 'methods' support might be removed in Zope 2.11 or a later feat of registerClass instead if the methods are constructors. Or refactor the prod DeprecationWarning) 2010-11-30 20:23:34 INFO Application New disk product detected, determining if w 2010-11-30 20:23:34 INFO Zope Ready to handle requests 2010-11-30 21:19:05 WARNING OFS.Uninstalled Could not import class 'openflow' from module 'Products.OpenFlow.openflow' 2010-11-30 21:19:05 WARNING OFS.Uninstalled Could not import class 'OpenFlowEditor' from module 'Products.OpenFlowEditor.OpenFlowEditor' 2010-11-30 21:19:05 WARNING OFS.Uninstalled Could not import class 'Connection'from module 'Products.ZPyGreSQLDA.DA' 2010-11-30 21:19:05 INFO PythonScripts Some of your Scripts have stale code cached. Since Zope cannot use this code, startup will be slightly slower until thes e Scripts are edited. You can automatically recompile all Scripts that have this problem by visiting /manage_addProduct/PythonScripts/recompile of your server i n a browser. 2010-11-30 21:19:09 WARNING OFS.Uninstalled Could not import class 'workitem' from module 'Products.OpenFlow.workitem' 2010-11-30 21:19:09 WARNING OFS.Uninstalled Could not import class 'instance' from module 'Products.OpenFlow.instance' 2010-11-30 21:19:09 WARNING OFS.Uninstalled Could not import class 'process' from module 'Products.OpenFlow.process' 2010-11-30 21:19:09 WARNING OFS.Uninstalled Could not import class 'transition'from module 'Products.OpenFlow.transition' 2010-11-30 21:19:09 WARNING OFS.Uninstalled Could not import class 'activity' from module 'Products.OpenFlow.activity' 2010-11-30 21:28:15 ERROR Zope.SiteErrorLog 1291132695.540.680391211014 http://172.21.55.72:8080/BT/manage_importObject Traceback (innermost last): Module ZPublisher.Publish, line 119, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 42, in call_object Module OFS.ObjectManager, line 615, in manage_importObject Module OFS.ObjectManager, line 634, in _importObjectFromFile Module OFS.CopySupport, line 526, in _verifyObjectPaste 2010-11-30 21:28:35 ERROR Zope.SiteErrorLog 1291132715.960.0667235585295 http://172.21.55.72:8080/BT/manage_importObject Traceback (innermost last): Module ZPublisher.Publish, line 119, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 42, in call_object Module OFS.ObjectManager, line 615, in manage_importObject Module OFS.ObjectManager, line 634, in _importObjectFromFile Module OFS.CopySupport, line 526, in _verifyObjectPaste ------------------------------------------------------------------------ ------------------------------------------------------------------------ ------------------------------------------------------------------------ ------------------------------------------------------------------------ -------------------------------------- Does that mean that OpenFlow is not installed properly? If yes what steps should I follow to install it? Am I missing something? Thanks a lot In Advance!!! Thanks & Regards, Smita Kamdar ============================================================================================================================Disclaimer: This message and the information contained herein is proprietary and confidential and subject to the Tech Mahindra policy statement, you may review the policy at <a href="http://www.techmahindra.com/Disclaimer.html">http://www.techmahindra.com/Disclaimer.html</a> externally and <a href="http://tim.techmahindra.com/Disclaimer.html">http://tim.techmahindra.com/Disclaimer.html</a> internally within Tech Mahindra.============================================================================================================================