User-friendly time format in Python?

Question

Python: I need to show file modification times in the \"1 day ago\", \"two hours ago\", format.

Is there something ready to do that? It should be in English.

Answer 1

DAY_INCREMENTS = [
    [365, "year"],
    [30, "month"],
    [7, "week"],
    [1, "day"],
]

SECOND_INCREMENTS = [
    [3600, "hour"],
    [60, "minute"],
    [1, "second"],
]


def time_ago(dt):
    diff = datetime.now() - dt  # use timezone.now() or equivalent if `dt` is timezone aware
    if diff.days < 0:
        return "in the future?!?"
    for increment, label in DAY_INCREMENTS:
        if diff.days >= increment:
            increment_diff = int(diff.days / increment)
            return str(increment_diff) + " " + label + plural(increment_diff) + " ago"
    for increment, label in SECOND_INCREMENTS:
        if diff.seconds >= increment:
            increment_diff = int(diff.seconds / increment)
            return str(increment_diff) + " " + label + plural(increment_diff) + " ago"
    return "just now"


def plural(num):
    if num != 1:
        return "s"
    return ""