smita kamdar wrote:

Hi,

I am supposed to set up development environment for a project. & for that I have already installed Zope-2.11.4, Python-2.4.4, Egenix-2.0.6, Postgresql-7.4.13, & Psycopg-1.1.6 on a RedHat LINUX box.

Now I need to install OpenFlow-1.1.0 in the Products directory of Zope. I tried installing OpenFlow source tar ball by the following instructions ?

./configure

Make

Sudo make install

All of the above commands worked successfully. But still I am not able to see the openflow product on the Zope Management Interface Screen. Can you please suggest something? It?s really urgent. Am I missing any steps while installing OpenFlow? Please Help me.

Regards,

Smita

First of all you need to make a correct installation of Zope: use 'make inplace' followed by './bin/mkzopeinstance.py'. In the created zope instance switch to the Products folder and unpack the OpenFlow tgz file. The problem is: the code is old and not working with the last zope versions. The fix is simple: in the file expression.py change line from Products.PageTemplates.Expressions import getEngine, _SecureModuleImporter in from Products.PageTemplates.Expressions import getEngine, SecureModuleImporter and remove SecureModuleImporter = _SecureModuleImporter() (at least in the version I have) If you need a workflow engine modern and up-to-date I counsel to integrate openwfe (now 'route': http://ruote.rubyforge.org/) -- Riccardo Lemmi