Installing OpenERP 7

Hello OpenERP 7, well i had downloaded a week ago and
just got time to install it. I had installed OpenERP since
version 5 and then 6. I had them installed in a virtualenv.
They are almost have typical `problems`. And those are:

1. psycopg , usually because of the pg_config
    not found, default is in /etc/pg_config, in my case was
    in /opt/PostgreSQL/8.4/bin/pg_config

2. PyChart, well just google and you will find it in
    sourceforge. Download it then :
    $ python build ; python install

3. pyparsing, occured in version 7, where current version
    is 2.0, as this article created, which only works with
    python 3. You will need to install it manually
    $ pip install pyparsing==1.5.7

Hope it helps. Happy OpenERP 7.