Well, “–enable-python” is the “default”.
If your ROOT did not find “python”, that usually means that the “python-dev” package is not installed (“sudo apt-get install python-dev”, then you need to “configure” and “make” your ROOT again FROM SCRATCH).
See the “Ubuntu 9, 10, 11 and 12” entry on the ROOT - Build Prerequisites web page.
See also: [url]Import ROOT error