Flash stdout centered to terminal width for extra oomph

flash_output.py

import sys
import time
import shutil



def blink_once(input, empty_str, wait=0.05):
    sys.stdout.write(f'\r{input}')
    time.sleep(wait)
    sys.stdout.write(f'\r{empty_str}')
    time.sleep(wait)

def blink(number, text):
    rows, columns = shutil.get_terminal_size((80, 20)) 
    text = text.center(rows, "_")
    empty_space = " " * rows
    for x in range(0,number):
        blink_once(text, empty_space)


while True:
    blink(10, "Verbum caro factum est")