I am trying to make button disappear after clicking it in tkinter but its showing error like nonetype object has no attribute pack_forget()

Question

##importing tkinter

from tkinter import *

###function to destroy button

def hide():
       b.pack_forget()
       l=Label(r,text="destryed").pack()

##main body

r=Tk()
r.geometry("1000x1000")


b=Button(r,text="click",command=hide()).pack()



r.mainloop()

Using `b=Button(r,text="click",command=hide()).pack()` is highly discouraged. The reason is that whatever .pack() returns (always a None type) will be stored in P1 and not the Button object. — PCM, Jun 10 '21 at 10:17

score 1 · Accepted Answer · answered Jun 10 '21 at 09:03

1

The problem lies in the definition of b. If you want b to be the button, you can't pack it on the same line.

The pack() method will always return None as there is no return. So, you define your variable b as None. Instead, first define the button and then pack it:

b=Button(r,text="click",command=hide())
b.pack()

So, the button is stored in variable b and you can destroy it.

answered Jun 10 '21 at 09:03

Martin Wettstein

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1

It should be `command=hide`. – Delrius Euphoria Jun 10 '21 at 10:19
Thanx a lot sir it worked!!!!! – tanvi Jun 10 '21 at 10:45

I am trying to make button disappear after clicking it in tkinter but its showing error like nonetype object has no attribute pack_forget()

1 Answers1