#!/usr/local/cpython-3.4/bin/python3 '''Show that CPython is using mmap and munmap for large arrays''' import time import array as array_mod def main(): '''Main function''' # 1 megabyte of memory should be safely above the 128k threshold array = array_mod.array('b', b'\0' * (1024*1024)) time.sleep(5) del array time.sleep(5) main()