booiljung

def left_right_crop(img, size):
    if isinstance(size, numbers.Number):
        size = (int(size), int(size))
    else:
        assert len(size) == 2, "Please provide only two dimensions (h, w) for size."

    w, h = img.size
    crop_h, crop_w = size
    if crop_w > w or crop_h > h:
        raise ValueError("Requested crop size {} is bigger than input size {}".format(size, (h, w)))

booiljung

# https://www.facebook.com/groups/pythonkorea/permalink/2257134351036380/

class Interface:
    def __init__():
        pass
    def __method__():
        pass

class A(Interface):
    def __init__(para1):