import schedule
import time
from datetime import date
from distutils.dir_util import copy_tree
import calendar

def file_backup():
    current_weekday = calendar.day_name[date.today().weekday()].upper()
    src = 'E:/some'
    dst = f'E:/test/{current_weekday}'

    copy_tree(src, dst)
    print("Starting backup...")

schedule.every().day.at("20:51").do(file_backup)
while 1:
    schedule.run_pending()
    time.sleep(1)