Compiling a separate copy of Vim for Python coding

Python omnicomplete requires Vim7 compiled with a Python interpreter (./configure --enable-pythoninterp), but that makes the Vim executable about 4.5mb heavier. For normal text editing I don't need that extra baggage, so I use 2 different copies of Vim; one that's compiled with my normal options (no python) and one that's compiled with python.