linux mint 13: Trying to get pythonpath to python3.2 not python2.7 = no joy

Trying to get pythonpath to python3.2 not python2.7 = no joy

I did
sudo gedit .profile
and changed the path to
PYTHONPATH=/usr/lib/python3.2

same with /etc/environment
PYTHONPATH=/usr/lib/python3.2

echo $PATH
still no python

tried again
python3.2 easy_install mechanize
no joy

Please help!