The display() functions shows you the image. It is useful for debugging.
If you are in Mac, the image will be opened by your default image application (Preview.app usually).
If you are in Windows, the image will be opened by imdisplay.exe, or your default image application (Windows Photo Viewer usually) if imdisplay.exe is unavailable.
You can use it from CLI also. Execute wand.display module through python -m option:
$ python -m wand.display wandtests/assets/mona-lisa.jpg
New in version 0.1.9.