#!/usr/bin/env python

from __future__ import print_function
import sys
import gc
import os


def open_files(number, close=False):
    for i in range(number):
        fn = '__{}.tmp'.format(i)
        f = open(fn, 'wb', 0)
        if close:
            f.close()
        os.unlink(fn)

        if i % 10000 == 0:
            print('>>>', i)


def run(close):
    open_files(number, close)
    gc.collect()
    print('Tracked objects:', len(gc.get_objects()))

    _input = getattr(__builtins__, 'raw_input', input)
    _input('Press Enter to continue...')


if __name__ == '__main__':
    try:
        number = int(sys.argv[1])
    except (ValueError, IndexError):
        number = 100000
        print('Usage: ./memory.py 100000')

    run(True)
    run(False)