I am having trouble figuring out this pset. Every time, I use check50 it shows many red faces.

from datetime import date
import sys
import re
# pip imported library to convert numbers into word format
from num2words import num2words


def main():
    print(convert(input("Date of Birth: ")))


def convert(dob):
    # Validates user input
    if re.search(r'^([1-2][0-9][0-9][0-9])-([0-1][0-9])-([0-3][0-9])$', dob):
        today = date.today()
        try:
            # Validate date format
            input_date = date.fromisoformat(dob)
        except ValueError:
            sys.exit("Invalid Date")
    # Calulations
    minus = today - input_date
    calculation = minus.days * 24 * 60
    word_form = num2words(calculation)

    # removes the word 'and'
    final = re.sub(r' and', '', word_form)

    return f'{final.capitalize()} minutes'

else:
    sys.exit("Invalid Date")


if __name__ == "__main__":
    main()

Thank you for the suggested and all is working well. The indentation were my mistake while writing this form. My main problem is when using check50 and nothing is being outputted but, when I run the program locally it outputs the correct sentence.