Conversor de data americana para brasileira

from datetime import date
import re

def main():
    birth_date = input('Date of Birth: ')
    print(check(birth_date))

def check(birth_date):
    if re.search(r"^[0-9]{4}-[0-9]{2}-[0-9]{2}$", birth_date):
        year, month, day = birth_date.split("-")
        return day + "/" + month + "/" + year

if __name__ == "__main__":
    main()