I'm starting to build an application for automated network troubleshooting. It's going without any issues so far.
I'm using an OOP approach @ which i create the widgets in the __init__ method. what's bothering me is that when the application starts getting more complex (Ex: Adding way more widgets); the __init__ method will get more crowded limiting the visibility of the code.

**Is there a better way to create the widgets without crowding the __init__() method?**

    from tkinter import *
    import customtkinter

    class App(customtkinter.CTk):
        def __init__(self):
            super().__init__()

            self.title("Automated TShooting Application")
            self.geometry("587x450+500+50")
            self.iconbitmap("Sharingan.ico")
            self.resizable(False, False)

            self.mainframe = customtkinter.CTkFrame(self, width=400, height=400)
            self.mainframe.grid(row=0, column=0, padx=20, pady=(20, 20))

            self.username_label = customtkinter.CTkLabel(self.mainframe, text="Username")
            self.username_label.grid(row=0, column=0, padx=20, pady=(20, 0))
            self.username_entry = customtkinter.CTkEntry(self.mainframe)
            self.username_entry.grid(row=1, column=0, padx=20)

            self.password_label = customtkinter.CTkLabel(self.mainframe, text="Password")
            self.password_label.grid(row=2, column=0)
            self.password_entry = customtkinter.CTkEntry(self.mainframe)
            self.password_entry.grid(row=3, column=0, padx=20, pady=(0, 20))

        

    if __name__ == "__main__":
        customtkinter.set_appearance_mode("light")

        app = App()
        app.mainloop()