from Tkinter import *
from tkinter import filedialog
from PIL import Image, ImageTk


def openFile():
    global newphoto,msg,idraw,img
    path = filedialog.askopenfilename(initialdir="/", title="Select Günther", filetypes=(("jpeg files", ".jpg"), ("png files", ".png"), ("gif files", ".gif")))
    im = Image.open(path)
    newphoto = ImageTk.PhotoImage(im)
    myvar.configure(image = newphoto)


root = Tk()
root.title("GentCon")

loadButton = Button(root, text="Load Günther...", command=openFile)
loadButton.pack()

canvas = Canvas(root, width = 800, height=480)
canvas.pack()

myvar = Label(canvas, text="Warte auf Günther")
myvar.pack()

root.mainloop()