[Tkinter] Issue with calling a Class/Method in GUI File

[Fre3k]

Short update from my side.

Since I didnt thought that there were any mistakes while calling the other class, I rebuilded simply everything, with some basics functions like the login , webscraper and so on.

Everythig seems to work now.
I didnt changed too much. Actually Nearly nothing.

Here is a snippet of the working code, for documentation if anyone has a similar issue.

gui.py

from tkinter import *
from tkinter import ttk

from app import ThisIsATest
from api import app

class Window(Tk):
    def __init__(self):
        super(Window, self).__init__()

        self.title("Tkinter OOP Window")
        self.geometry('500x400')

        self.button = ttk.Button(text = "Click", command=self.clickMe)
        self.button.grid(column=0, row=0)

    def clickMe(self):
        # call of the class
        api = app()
        
window = Window()
window.mainloop()

api.py

class app():
    def __init__(self):
        
        self.session = requests.Session()
        self.config = {}
        self.loggedIn = False
          
        self.testMethod()


    def testMethod(self):
        print('Run test Meethod')
        self.getJsonFileContent('config') 
        print(self.config['username'])
        

# METHODS ==================================================================
# ================= getJsonFileContent() =================
    def getJsonFileContent(self, param):
        # read in config file
        print(param)
        if(param == 'config'):
            try:
                with open('config.json', 'r') as configFile:
                    self.config=json.load(configFile)
                    configFile.close()
                
                logger.info(" READ config File ")
            except:
                logger.warning("Could not read in config file")

        # elif not need right now  cookies saved in self.cookies !
        elif (param == 'cookies'):
            try:
                pass #  r+   for read and write !

            except:
                logger.warning("Could not read in cookies file")
# ================= END OF getJsonFileContent() =================

Output:
Run test Meethod
config
player1

Well kinda strange, but as long as its working, its fine for me ^^

Anyways thanks for reading