AttributeError: 'NoneType' object has no attribute 'delete'
nonetype, python, tkinter
Solution
In this line:
entryBox = tk.Entry(mainWindow, textvariable=v).grid(column=0, row=1)
grid doesn't return anything, so entryBox is `None`, which doesn't have a delete method. You have to set `entryBox` to `tk.Entry(mainWindow, textvariable=v)` then call the `grid` method on `entryBox`
Problem
I have run into this issue and I can't understand why. I took my code from my application and made this test code so you don't have to go through a bunch of junk to see what I am asking. I have this working in other code. But after comparing the two, I can't for the life of me figure this out. In this application, I get the error "AttributeError: 'NoneType' object has no attribute 'delete' ". ``` import Tkinter as tk def main(): mainWindow = tk.Tk() v = tk.StringVar() entryBox = tk.Entry(mainWindow, textvariable=v).grid(column=0, row=1) def test(): entryBox.delete(0,20) testButton = tk.Button(mainWindow, text='Go!', command=test, padx=10).grid(row=2, column=0) tk.mainloop() main() ```