I am trying to follow instructions at http://sagemath.org/doc/numerical_sage/installation_linux.html, "Installing Visualization Tools on Linux". (sage 4.7.1 on Ubuntu 12.04).
These instructions recommend getting Tkinter to work. I have been unable to do so for similar reasons as June 7 post, "Tkinter for sage 5.0 on linux."
In response to that post,  V. Braun suggests not using Tkinter. 
Should I ignore initial instructions under "Installing Visualization..." relating to Tkinter?             
Thanks, Bob
 
 