cpuinfo in python 2.4 for windows

Question

How can I get cpuinfo in python 2.4. I want to determine number of processors in a machine. (The code should be OS independent). I have written the code for Linux, but don't know how to make it work for windows.

import subprocess, re
cmd = 'cat /proc/cpuinfo |grep processor |wc'
d = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
lines = d.stdout.readlines()
lines = re.split('\s+', lines[0])
number_of_procs = int(lines[1])

Assuming that I don't have cygwin installed on windows machine, I just have python2.4. Please let me know if there's some module which can be called for this purpose, or any help to write the code for this functionality.

Thanks, Sandhya