Hey, everyone!
I'm trying to execute this notebook, but I came across an attribute error: PIL has no attribute Image.

I tried implementing "from PIL import Image" , and other common fixes available on StackOverflow, but I didn't get anywhere. I want to be able to plot the images. And not using matplotlib. Is there any workaround to this?

SOLVED: Turns out BYU wrote a library specifically for the course which replaces PIL's Image, despite them giving explicit instructions to use PIL. Disregard if not specifically working on project one of CS111 at BYU. If you happen to be doing so, go look at the slides for lecture 7. You will need to import the byuimage library, which is not included in any of the distribution code, even though PIL imports are.

Hey guys! I'm working on some projects necessary to get a class waived at the school I'll (pending aceptance) be going to next fall. My experience with python is, well, very little, but the intro class uses python so I'm doing the work in Python.

The first project entails a simple "image processing" program. I've got to the first point to run a pytest (I have zero prior experience with pytest, so if I've done something done there, my bad), which is just to open and display the passed image. Program works as intended, but when I run the pytest written by the school, I get the following error.

__test_display_image ______________________________
monkeypatch = <_pytest.monkeypatch.MonkeyPatch object at 0x0000024D0468D2D0>
@max_score(20)
def test_display_image(monkeypatch):
    observed = None
  @functools.wraps(Image.show)
E       AttributeError: module 'PIL.Image' has no attribute 'show'
test_project1.py:23: AttributeError

At first, I assumed that Pillow wasn't getting imported correctly, but the import line is the same in teh pytest as in the program.

from PIL import Image

After a good deal of googling, I've found similar looking errors dealing with other methods of Image, but none concerning .show, and they all have wildly different reasons, so I'm at a bit of a loss. The pytest and program files are in the same directory. I'm sure it's something dumb, but I'm not really sure what else to look at, so I'd love to have my dumb mistake pointed out! Thank you all!

Pytest code

from PIL import Image
from byu_pytest_utils import max_score, run_python_script, test_files
import functools import pytest

def assert_equal(observed: Image, expected: Image):
    assert observed.width == expected.width assert observed.height ==             
expected.height for y in range(observed.height):
        for x in range(observed.width): 
            observed_pixel = observed.get_pixel(x, y) expected_pixel =                     
        expected.get_pixel(x, y)
            assert observed_pixel.red == expected_pixel.red, f"the pixels at 
        ({x}, {y}) don't match" 
            assert observed_pixel.green == expected_pixel.green, f"the pixels at                 
         ({x}, {y}) don't match" 
            assert observed_pixel.blue == expected_pixel.blue, f"the pixels at                 
        ({x}, {y}) don't match"

@max_score(20) def test_display_image(monkeypatch):
    observed = None @functools.wraps(Image.show) 

    def patched_Image_show(self):
        nonlocal observed
        observed = self 
        monkeypatch.setattr(Image, 'show', patched_Image_show)

        run_python_script('image_processing.py', '-d',
                  test_files / 'explosion.input.png')

        if observed is None:
            pytest.fail('No Image was shown')

        assert_equal(observed, Image(test_files / 'explosion.input.png'))

Program code (though I don't think it should matter)

import sys
from PIL import Image

def main():
if not validate_command(sys.argv):
    return

run_command()

def validate_command(args):
    try: 
        if args[1][0:1] == '-' and args[2] != None:
            print(f"Running image processor with aruments {args[1]}, {args[2]}")         
            return True
        else:
        print("Invlaid arguments. Usage: image_processing.py <operation>     
         [<argument 1> <argument 2> ...]") 
    except: print("Invlaid arguments. Usage: image_processing.py <operation> 
        [<argument 1> <argument 2> ...]")
            return False

def display(image):
    image.show()

def run_command():
image = Image.open(sys.argv[2])
commands[sys.argv[1]](image)

commands = {"-d": display}

main()

(Pasting into reddit messed up the formatting, so it's possible I made a mistake when correcting the formatting)