numpy_test.py

import gc
from time import sleep
import numpy as np

print('allocating memory')
pile=[]
for i in range(1500):
    for x in range(4):
        pile.append(np.ones((256, 64), dtype=np.float32))
        pile.append(np.ones((256, 64), dtype=np.float32))
        pile.append(np.ones((256,), dtype=np.float32))
        pile.append(np.ones((256,), dtype=np.float32))

print('waiting two seconds')
sleep(2)
del pile

print('hypothetically de-allocating memory')
gc.collect()

print('waiting forever')
sleep(1)

while True:
    sleep(1)