seasons.py

"""
Assuming there are 365 days in a year, there are
minutes in that same year (because there are 24 hours in a day and 60 minutes in
an hour). But how many minutes are there in two or more years? Well, it depends
on how many of those are leap years with 366 days, per the Gregorian calendar,
as some of them could have
additional minutes. In fact, how many minutes has it been since you were born?
Well, that, too, depends on how many leap years there have been since! There is
an algorithm for such, but let’s not reinvent that wheel. Let’s use a library
instead. Fortunately, Python comes with a datetime module that has a class
called date that can help, per
docs.python.org/3/library/datetime.html#date-objects.

In a file called seasons.py, implement a program that prompts the user for their
date of birth in YYYY-MM-DD format and then sings prints how old they are in
minutes, rounded to the nearest integer, using English words instead of
numerals, just like the song from Rent, without any and between words. Since a
user might not know the time at which they were born, assume, for simplicity,
that the user was born at midnight (i.e., 00:00:00) on that date. And assume
that the current time is also midnight. In other words, even if the user runs
the program at noon, assume that it’s actually midnight, on the same date. Use
datetime.date.today to get today’s date, per
docs.python.org/3/library/datetime.html#datetime.date.today.

Structure your program per the below, not only with a main function but also
with one or more other functions as well:

You’re welcome to import other (built-in) libraries, or any that are specified
in the below hints. Exit via sys.exit if the user does not input a date in
YYYY-MM-DD format. Ensure that your program will not raise any exceptions.

Either before or after you implement seasons.py, additionally implement, in a
file called test_seasons.py, one or more functions that test your implementation
of any functions besides main in seasons.py thoroughly, each of whose names
should begin with test_ so that you can execute your tests with:
"""

from datetime import date
import sys
import re
import inflect


def convert(birthday):
    try:
        if cleaned_birthday := re.search(r"^(\d{4})-(\d{2})-(\d{2})$", birthday):
            year, month, day = map(int, cleaned_birthday.groups())
        else:
            raise ValueError
        birthday = date(year, month, day)
    except ValueError:
        sys.exit("Invalid date")
    else:
        days_to_sing = ((date.today() - birthday).days) * 24 * 60
        # print(f"{days_to_sing:_} minutes")

        # convert numerals to words (i.e. 1->"one", 101->"one hundred and one", etc.)
        p = inflect.engine()
        return (p.number_to_words(days_to_sing, andword="") + " minutes").capitalize()


def main():
    birthday = input("Date: ")
    return print(convert(birthday))


if __name__ == "__main__":
    main()