installing python in a debian based distro

So, for different reasons I need to install python in my chrubuntu, googling I found that several users have extremely different opinions related to the installation process, I think that the main reason is the OS, in some GNU/Linux I found that it would be a messy process but in others, specially the debian based, it's easier, so here they are the steps that I followed:

sudo apt-get install python-software-properties
sudo apt-add-repository ppa:brightbox/ruby-ng
sudo apt-get update
sudo apt-get install build-essential ruby rubygems ruby-switch
sudo apt-get install ruby1.9.1
sudo ruby-switch --set ruby1.9.1
sudo ruby-switch --set ruby1.8

as you can see, it's very simple, in fact, I don't have much to say because these are my first steps with ruby, I found a lot controversy in the versions, 1.8 and 1.9, but you know, in future posts I could have useful comments or info, specially related to IDE's.