Getting total/free RAM from within Python

Question

From within a Python application, how can I get the total amount of RAM of the system and how much of it is currently free, in a cross-platform way?

Ideally, the amount

Answer 1

In windows I use this method. It's kinda hacky but it works using standard os library:

import os
process = os.popen('wmic memorychip get capacity')
result = process.read()
process.close()
totalMem = 0
for m in result.split("  \r\n")[1:-1]:
    totalMem += int(m)
print totalMem / (1024**3)