[Tkinter] Troubles with accessing attr from other class

[zarize]

Hi Guys,

I would like to make a "big button" which would load data in several tabs in my app.
In order to do this, i wanted create a function which would load 2nd part of the data, however, i can't access it.. i don't know why.

There is no problem to call the function, in that particular way it is working, but i would like to access it from other tab and then i can't make it.

    def test(self):
         
        self.historical_entry_market.insert(0, "asd")

I tried to run:

    def test(self):
         
        Comments_Tab(self).historical_entry_market.insert(0, "asd")

However it is not working..


Below are the codes for files
MAIN.py

import tkinter as tk
from tkinter.ttk import *
import pandas as pd
from rents import Rents_Tab
from comments import Comments_Tab

class MainApplication(tk.Frame):
    def __init__(self, parent, *args, **kwargs):
        tk.Frame.__init__(self, parent, *args, **kwargs)
        self.parent = parent
        self.parent.geometry("700x700")
        
        self.notebook = Notebook(self)
        self.notebook.pack(fill="both", expand=True)
        
        #Tab name
        page1 = Rents_Tab(self.notebook)
        self.notebook.add(page1, text="Rents")
        page2 = Comments_Tab(self.notebook)
        self.notebook.add(page2, text="Comments")



if __name__ == "__main__":
    root = tk.Tk()
    MainApplication(root).pack(side="top", fill="both", expand=True)
    root.mainloop()

comments.py

import tkinter as tk
from tkinter.ttk import *
import pandas as pd


class Comments_Tab(tk.Frame):
    def __init__(self, parent, *args, **kwargs):
        tk.Frame.__init__(self, parent, *args, **kwargs)
        
        #Headers
        self.header = Label(self, text="New Cycle(Current) ")
        self.header.grid(row=0, column=2)

        
        self.entry_label_market = Label(self, text="Market Trend: ")
        self.entry_label_market.grid(row=1, column=1)
        self.entry_market = Entry(self, width=30)
        self.entry_market.grid(row=1, column=2)
        
        self.entry_label_location = Label(self, text="Trend: ")
        self.entry_label_location.grid(row=2, column=1)
        self.entry_location = Entry(self, width=30)
        self.entry_location.grid(row=2, column=2)

        self.entry_label_survey = Label(self, text="Sources: ")
        self.entry_label_survey.grid(row=3, column=1)
        self.entry_survey = Entry(self, width=30)
        self.entry_survey.grid(row=3, column=2)
        
        ### Historical Data
        #Headers
        self.historical_header = Label(self, text="Historical ")
        self.historical_header.grid(row=0, column=3)
        #Labels
        self.historical_entry_market = Entry(self, width=30)
        self.historical_entry_market.grid(row=1, column=3)       

        self.historical_entry_location = Entry(self, width=30)
        self.historical_entry_location.grid(row=2, column=3)

        self.historical_entry_survey = Entry(self, width=30)
        self.historical_entry_survey.grid(row=3, column=3)
        
        #Buttons
        test_button = Button(self, text="Show Data", command=lambda: Comments_Tab.test(self))
        test_button.grid(row=5, column=3)
        
    def test(self):
        
        Comments_Tab(self).historical_entry_market.insert(0, "asd")