Ошибка в моем коде.

Новичок в python поэтому не нужно говорить 'Говнокод'
Вот мой код:

from tkinter import *
from tkinter import Tk, Button
from PIL import ImageTk
from tkinter import Canvas, Frame, BOTH



n = 0 # переменная для счетчика
def nplus(self):
global n
n = n + 1 # добавляем 1 к переменной n
ag_txt['text'] = str(n)

root1 = Tk()
root1.title('Nergame')
root1.geometry('400x600')
root1["bg"] = "#F0F0F0"

image = ImageTk.PhotoImage(file="image.jpg")




ag_txt = Label(
bg="#F0F0F0",
font="Arial 30",)
ag1 = Button(image=image, text=str(n), command=nplus, background="#5ac66e", foreground="#5ac66e",
pady="2", font="16", bd ="0")
ag1.bind_all('<Button-1>', nplus)
ag_txt.place(x=125, y=50)
ag1.place(x=100, y=350 )
root1.mainloop()

Код

from tkinter import *

from tkinter import Tk, Button

from PIL import ImageTk

from tkinter import Canvas, Frame, BOTH







n = 0  # переменная для счетчика

def nplus(self):

    global n

    n = n + 1  # добавляем 1 к переменной n

    ag_txt['text'] = str(n)



root1 = Tk()

root1.title('Nergame')

root1.geometry('400x600')

root1["bg"] = "#F0F0F0"



image = ImageTk.PhotoImage(file="image.jpg")









ag_txt = Label(

                   bg="#F0F0F0",

                   font="Arial 30",)

ag1 = Button(image=image, text=str(n), command=nplus, background="#5ac66e", foreground="#5ac66e",

              pady="2", font="16", bd ="0")

ag1.bind_all('<Button-1>', nplus)

ag_txt.place(x=125, y=50)

ag1.place(x=100, y=350 )

root1.mainloop()

ГДЕ ОН УВИДЕЛ ТУТ ОШИБКУ???

Exception in Tkinter callback
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/tkinter/__init__.py", line 1705, in __call__
return self.func(*args)
TypeError: 'staticmethod' object is not callable

Код

Exception in Tkinter callback

Traceback (most recent call last):

  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/tkinter/__init__.py", line 1705, in __call__

    return self.func(*args)

TypeError: 'staticmethod' object is not callable