Use some python package manager like: easy_install or pip, both are avaliable from the Software Center.

You should follow this steps:

1. Remove any Envisage version installed through the Ubuntu package manager or any other way.



2. Install easy_install.




3. If the package that you are trying to install has C extensions (and Envisage does), you will need at to install at least this packages: build-essentials, python-dev. The points 2 and 3 can be both done with one command

   
   
   

   sudo apt-get install python-setup-tools python-dev build-essentials




4. Finally open the console and type:

   
   
   

   sudo easy_install envisage

This should install version 4.0.0 (by fetching it from the official repos and compiling it, it will take a while).

You can install any package from the official python repos just with

sudo easy_install package

Pip works in a similar way, but it provides a uninstall facility. The main easy_install advantage is its popularity. If you want to use pip you will need to install the python-pip package instead of python-setuptools and use the following command (not tested):

pip install envisage