my button in tkinter is not showing the image

Question

this code is just an example code:

import tkinter as tk
root = tk.Tk()
photoImageObj = tk.PhotoImage(file="signout.png")
lab = tk.Label(root, image=photoImageObj).pack()
photoImageObjj = tk.PhotoImage(file="signout.png")
signout_button=tk.Button(root,image=photoImageObjj).pack()
root.mainloop()

In this code it is working and output is also working fine. here is the output: but in my real project, where I am using this button with the image is not working. code:

photoImageObj = PhotoImage(file="signout.png")
signout_button=Button(stem,image=photoImageObj).pack()

here I haven't pasted my whole code since it is having 50-60 line's of code. Output:

so if the same code is working fine, then there is problem in my real project file. so can anyone help me debug that.

Is the code in your project inside a function? – acw1668 Nov 10 '20 at 11:06 — acw1668, Nov 10 '20 at 11:06
yeah, it is inside a function – Hafeezh Nov 10 '20 at 11:26 — Hafeezh, Nov 10 '20 at 11:26
is that the culprit behind this – Hafeezh Nov 10 '20 at 11:33 — Hafeezh, Nov 10 '20 at 11:33
Yes it is the "culprit" – Delrius Euphoria Nov 10 '20 at 11:43 — Delrius Euphoria, Nov 10 '20 at 11:43

score 1 · Accepted Answer · answered Nov 10 '20 at 11:45

When an image is inside a function you have to keep reference to the image or it will be garbage collected by python. With the code provided its hard to say, but just try something like:

signout_button = Button(stem,image=photoImageObj)
signout_button.pack() #so that signout_button is not None
signout_button.image=photoImageObj #keeping a reference

Alternatively, you could also say global photoImageObj on top of function, but its not recommended to use global. This question should be marked as a duplicate and closed, but just in-case you dont understand what to do in your "specific case", here is the answer.

my button in tkinter is not showing the image

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