I'm a new user to OpenERP. I'm using OpenERP 7 on Ubuntu Server 13.10. Need to test the functionality of this module.

Error while installing "Purchase_Landing_Cost" module -

OSError: [Errno 13] Permission denied: '/usr/lib/pymodules/python2.7/openerp/addons/purchase_landing_costs'

No problem with access rights - drwxr-xr-x 215 root root 12288 Jan 16 09:24 /usr/lib/pymodules/python2.7/openerp/addons

Can someone please help me in installing this module.