how to build with 2.4 having 2.6 as main python

[Alexzive]

Hello there,

my Mandriva has the 2.6.4 python pre-installed (in /usr/lib64/
python2.6/)
I need to install numpy 1.4 for python 2.4.3 (I installed it
separately from source on/usr/local/lib/python2.4/ )

but still typing "python" I get:
Python 2.6.4 (r264:75706, Jan  8 2010, 18:59:59)
[GCC 4.4.1] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>

what to change in order to get "python" calling python 2.4.3 instead
of 2.6.4 (at least during python setup.py build)?

I suppose I need something like changing the link to /usr/local/bin/
python..
but I fear to do something bad by myself..
please help!