ishouldknow

#!/usr/bin/env python

from datetime import date
import calendar

if __name__ == '__main__':
    today = date.today()

    if today.day == 1:
        day = "1st"
    elif today.day == 2:
        day = "2nd"
    elif today.day == 3:
        day = "3rd"
    else:
        day = f"{today.day}th" 


    # Every year that is exactly divisible by four is a leap year, except for years that are exactly divisible by 100, but these centurial years are leap years if they are exactly divisible by 400. For example, the years 1700, 1800, and 1900 are not leap years, but the years 1600 and 2000 are.[14]

    if today.year % 4 == 0:
        is_leap_year = (today.year % 100 != 0) or (today.year % 400 == 0)
    else:
        is_leap_year = False

    print(f"It is {calendar.day_name[today.weekday()]}, {day} of {calendar.month_name[today.month]}, {today.year}.")
    if is_leap_year:
        print("It is a leap year.")
    else:
        print("It is not a leap year.")

    start_of_year = date(today.year, 1, 1)
    start_of_next_year = date(today.year + 1, 1, 1)

    day_of_year = (today - start_of_year).days + 1
    days_left_in_year = (start_of_next_year - today).days

    print(f"Today is day {day_of_year} of {today.year}")
    if days_left_in_year == 1:
        print(f"Today is the last day of {today.year}")
    else:
        print(f"There are {days_left_in_year} days left in {today.year} (counting today)")