My Background Image Is Not Appearing (Python Tkinter)

[Axel_Erfurt]

If you use png you can do it that way

from tkinter import Canvas, PhotoImage, Tk

root = Tk()
  
root.geometry("1230x750")
bg = PhotoImage(file = "school.png")
  
canvas1 = Canvas( root)
canvas1.pack(fill = "both", expand = True)

canvas1.create_image( 0, 0, image = bg, 
                     anchor = "nw")

root.mainloop()