[FIXED] How to print the text of a function of a class from another file? (Python)

Issue

I would like to print the text "Ok, good" after clicking on a checkbox. The function is in a class of an external file. I've come close to the solution, but I'm doing something wrong.

I get error: Button1_func() missing 1 required positional argument: 'self'

Could anyone suggest me what am I wrong and how to fix? Thank you

main.py

from tkinter import *
from tkinter import ttk
import tkinter as tk
from tkinter import ttk

from x import class_example

window=Tk()
window.configure(bg='#f3f2f2')
style = ttk.Style(window)

def Button1_func(self):
    myclass = x.class_example(self)
    myclass.print_function()

Checkbutton1 = IntVar()

Button1 = Checkbutton(window, text = "Checkbox 1", variable = Checkbutton1, command=Button1_func())
Button1.place(x=1, y=48)

window.mainloop()

x.py

class class_example:
    def __init__(self):
        self.number = 5

        def print_function(self):
            if self.number == 5:
                 print("Ok, good")

Solution

So the main problem is that the function Button1_func is not in a class and thus doesn't require self so remove that

def Button1_func():
    myclass = class_example()
    myclass.print_function()

also unindent the print_function it should't be inside the __init__

Finaly change the

Button1 = Checkbutton(window, text = "Checkbox 1", variable = Checkbutton1, command=Button1_func())

to

Button1 = Checkbutton(window, text = "Checkbox 1", variable = Checkbutton1, command=Button1_func)

as your providing Button1_func not running it (Button1_func())

and it worked on my side

working code(main.py)

from tkinter import *
from tkinter import ttk
import tkinter as tk
from tkinter import ttk
from x import class_example

window=Tk()
window.configure(bg='#f3f2f2')
style = ttk.Style(window)

def Button1_func():
    myclass = class_example()
    myclass.print_function()

Checkbutton1 = IntVar()

Button1 = Checkbutton(window, text = "Checkbox 1", variable = Checkbutton1, command=Button1_func)
Button1.place(x=1, y=48)

window.mainloop()

x.py

class class_example:
    def __init__(self):
        self.number = 5

    def print_function(self):
        if self.number == 5:
             print("Ok, good")

Answered By - 35308

Answer Checked By - Pedro (PHPFixing Volunteer)