Practicing datetime module

datetime_practice.py

from datetime import datetime

def time_delta_in_words(d1: datetime, d2: datetime):
    years = abs(d1.year - d2.year)
    months = abs(d1.month - d2.month)
    # if d1.month - d2.month < 12 then less than an entire year between events. therefore subtract a year
    if months < 12:
        years -= 1
        print(f"less than 12 months between deltas, years now {years=}")
    days = abs(d1.day - d2.day)

    past_or_future = "ago" if d2 < d1 else "from now"
    collective = []
    if years:
        collective.append(f"{years} year{'s' if years != 1 else ''}")
    if months:
        collective.append(f"{months} month{'s' if months != 1 else ''}")
    if days:
        collective.append(f"{days} day{'s' if days != 1 else ''}")
    collective.append(past_or_future)
    print(', '.join(collective))

if __name__ == '__main__':
    date = datetime.now()
    # Wed Apr 30, 2025 04:31:51 PM
    print(date.strftime("%a %b %d, %Y %I:%M:%S %p"))
    # https://docs.python.org/3/library/datetime.html#format-codes

    # calculate year, month, day delta between date_born and date_today
    birthday = datetime(1976, 6, 16)
    today = datetime.now()

    time_delta = today - birthday
    print(time_delta)
    # 49 years, 2 months, 14 days, ago
    time_delta_in_words(today, birthday)

I'm not sure if that fixes other cases, but it is something to note