memleak.py

import gc
import sys

import numpy as np

from numba import jit


def inner():
    N = 100
    a = np.ones(N)

    for i in range(1000):
        if i % 100 == 0:
            gc.collect()
            print("%d ... %d allocated blocks" % (i, sys.getallocatedblocks()))

        @jit(nopython=True, nogil=True)
        def testNumba(x):
            return np.sum(x)

        r = testNumba(a)
        assert r == N, r

def main():
    inner()
    gc.collect()


main()