How to detect which modules are installed

We are trying to develop a new type of navigation page. But here we need to be able to detect as to which modules are installed in OpenERP.

How can we detect them?

In your custom code you can just write down the following code to find out the installed modules.

    installed_module_ids = self.pool.get('ir.module.module').search(cr,uid,[('state','=','installed')])

It will give you ids of installed modules. Then after you can use read or browse to get another details of those modules. 

Need more info?

This documentation page has been extracted from the Q&A section where you can discuss it and get feedback.
Related question