Python Mss Mss.exception.ScreenShotError:

I'm newbie. I try use mss to screenshot monitor. My code: for i in range(1, 20000): cactus_box = {'left': 508, 'top': 382, 'width': 30, 'height': 33} sct = mss() sct_img = sc

Solution 1:

EDIT: this is due to resources not freed. It is fixed in MSS 4.0.0 or newer.

Could you try to use MSS ouside the for loop? Something like:

with mss() as sct:
    cactus_box = {'left': 508, 'top': 382, 'width': 30, 'height': 33}
    for i in range(1, 20000):
        sct_img = sct.grab(cactus_box)

The error message is not very explicit but it tells you that the screenshot is not possible (no bits where retrieved). But we cannot know the cause. A memory error perhaps.

Also, try to print i to see if it bugs early.