how to find number of processors in python

[muttu]

hello everybody
am writing a scanner using python which has to get the information for
sun's dual processors, so could any one of you please tell me how to
find the number of processors . is there any api's for this , and also
lemme know how exactly i can write the scannerapi for this, so that it
can read the information of all the cpu's. I have the related CFG 
file for that.
with regards
thanks in advance