Tkinter.PhotoImage doesn’t not support png image

PIL is now replaced by Pillow http://pillow.readthedocs.io/en/3.2.x/ solution: from Tkinter import * import PIL.Image import PIL.ImageTk root = Toplevel() im = PIL.Image.open(“photo.png”) photo = PIL.ImageTk.PhotoImage(im) label = Label(root, image=photo) label.image = photo # keep a reference! label.pack() root.mainloop() If PIL could not be found in code, you do need a pillow install: pip install pillow