iterating over Image Editors Blender IMAGE_EDITOR

iteration_over_image_editors.py

import bpy

images = bpy.data.images

# say I know I have 2 images loaded, and 2 IMAGE_EDITORS open
# currently none of the image editors are showing any image.
loaded_images = images[:]

AREA = 'IMAGE_EDITOR'

for window in bpy.context.window_manager.windows:
    for area in window.screen.areas:

        if not area.type == AREA:
            continue

        for s in area.spaces:
            if s.type == AREA:
                image_to_use = loaded_images.pop()
                # s.image is the property you would need to set for each
                # IMAGE_EDITOR to tell it to display a certain image ( by reference )
                s.image = image_to_use