Community

self what is this?

So I was following your tkinter tuts and I'm getting really confused, like you said in the video, I know about classes and what they do but they're insanely confusing when I have no idea what im typing when following a video of yours,.
import tkinter as tk

LARGE_FONT = ("Verdana", 12)

class SeaOfBTC(tk.Tk):
    def __init__(self, *args, **kwargs):
        print(self) #I thought maybe this would give me an answer, all it gave me was "."
        tk.Tk.__init__(self, *args, **kwargs)
        container = tk.Frame(self) #why is self here?

        container.pack(side='top', fill='both', expand=True)

        container.grid_rowconfigure(0, weight=1)
        container.grid_columnconfigure(0, weight=1)

        self.frames = {}

        frame = StartPage(container, self) #and here ?? what is self??

        self.frames[StartPage] = frame

        frame.grid(row=0, column=0, sticky='nsew')

        self.show_frame(StartPage)

    def show_frame(self, cont):
        frame = self.frames[cont]
        frame.tkraise()


class StartPage(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text="Hello world", font=LARGE_FONT)
        label.pack(pady=10, padx=10)

app = SeaOfBTC()
app.mainloop()