[Python] Fail to allocate bitmap

I run this simple code in below to load images from a folder and after around 200 images I get this error "Fail to allocate bitmap". The problem mainly in the matplotlib.pyplot. I try to free the memory inside the loop using the 7 ways which shown in the code but unfortunately useless.

I found similar question but with no answer! I hope to receive solution for this problem.

from __future__ import division

import os
import numpy as np
import gc
from os import listdir
from os.path import isfile, join
import matplotlib.pyplot as plt
from PIL import Image


def test():

entries = os.listdir(r"D:\Images")
for entry in entries:
if entry.endswith(".jpg"):

img = np.array(Image.open(r"D:\Images\{}".format(entry)))
fig, ax = plt.subplots(1)

#Many ways I added to free the memory#
plt.close('all')
fig.clear()
ax.clear()
plt.clf()
gc.collect()
plt.close(fig)
del img
#####################################


UPDATE:

My Environment is Anaconda 3, OS: Windows 10

UPDATE:

I replaced this line:

fig, ax = plt.subplots(1)


With

fig, ax = plt.subplots(num=1, clear=True)


And the code became running for longer time, before I got the error after loading 185 images but now after I added "clear=true" the error appears after 369 images so this almost became the double. but the problem is still exist!

Continue reading...