Tkinter multiple functions running at the same time as GUI mainloop

Question

I have a simple Python GUI (tkinter) program that downloads videos from YouTube, however my GUI crashes (not responding) when ever the download function is running (item being downloaded) and returns after the download is done, I read about threading as a way to overcome this, but I'm having challenges implementimg it in my
program. Could anyone please help me out by explaining very well, or is there another way to fix this problem??

Answer 1

What do you mean multiple functions running? I created a program where we had multiple functions running at the same time and it worked. It was a Tkinter login.