Bug report

Again, this does not happen when I run the program from the command line, just in IDLE. If you remove the import lines that include torchvision, then the plot shows up. Otherwise, the plot is not visible.

from torchvision import datasets
from torchvision.transforms import ToTensor
from matplotlib import pyplot as plt

import numpy as np

img = np.array([[1,2,3,4,5],[6,7,8,9,10],[6,7,8,9,10],[6,7,8,9,10],[6,7,8,9,10]])

plt.imshow(img, cmap="gray")
plt.show()

Your environment

• CPython versions tested on: 3.9.12
• Operating system and architecture: Fedora 34