How do I fix the “image ”pyimage10“ doesn't exist” error, and why does it happen?

Question

I am making a tkiner application and that shows a user a page with some basic information and a picture before allowing them to click a button to view live Bitcoin price dat

Answer 1

Like @joost-broekhuizen, I've had the same problem using Tkinter together with matplotlib.pyplot functions. Adding a 'master' to the PhotoImage function solved the problem for me.

Broken code (raises: TclError: image "pyimage10" doesn't exist):

import matplotlib
matplotlib.use("TkAgg")
from matplotlib.backends.backend_tkagg import FigureCanvasTkAgg
import matplotlib.pyplot as plt
import Tkinter as tk
from PIL import Image, ImageTk

fig = plt.figure()

root = tk.Tk()
image = Image.open("background.png")
photo = ImageTk.PhotoImage(image)
label = tk.Label(root, image=photo)
label.image = image
label.pack()

root.mainloop()

Adding 'master=root' to PhotoImage solved this error!

photo = ImageTk.PhotoImage(image, master=root)