I have a working Python ecosystem on Ubuntu.
Now I want to try Enthought Canopy. Will that installation mess up or interfere somehow with my current system?
Two examples to illustrate my confusion:
ipython
in a terminal? No it wont:
http://docs.enthought.com/canopy/quick-start/install_linux.html
If the check box for making Canopy your default Python environment is checked the following line will be added your .bash_profile or .profile files:
source ~/Enthought/Canopy_32bit/User/bin/activate
But you can always uncheck the box.