tkinter版のyieldsleep

main.py

from functools import wraps


def yieldsleep(widget):
    def func(create_gen):
        @wraps(create_gen)
        def func2(*args, **kwargs):
            gen = create_gen(*args, **kwargs)

            def sleep(milliseconds):
                widget.after(milliseconds, resume_gen)

            def resume_gen():
                try:
                    sleep(next(gen))
                except StopIteration:
                    pass
            resume_gen()
            return gen
        return func2
    return func


from tkinter import *

root = Tk()
label = Label(root, font=('', 80))
label.pack(fill='both')


@yieldsleep(label)
def animate_label(label):
    while True:
        yield 0
        label['text'] = 'Do'
        yield 500
        label['text'] = 'You'
        yield 500
        label['text'] = 'Like'
        yield 500
        label['text'] = 'Tkinter?'
        yield 1500


gen = animate_label(label)
button = Button(root, text='stop animation', command=gen.close)
button.pack(fill='both')

root.mainloop()