Installing Pyramid is easy and normal from a Python packaging perspective. Again, make sure you have your virtual environment first in your path using source bin/activate.
(env33)$ easy_install-3.3 pyramid ....chuggalugga... (env33)$ which pserve
You now have Pyramid installed. The second command confirms this by looking for the Pyramid pserve command that should be in the bin of your virtual environment.
Later parts of the tutorial install more packages. Most likely, you'd like to go ahead and get all of it now:
(env33)$ easy_install-3.3 pyramid nose webtest deform sqlalchemy