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User-friendly time format in Python?

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.

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Answer

The code was originally published on a blog post “Python Pretty Date function” (http://evaisse.com/post/93417709/python-pretty-date-function)

It is reproduced here as the blog account has been suspended and the page is no longer available.

def pretty_date(time=False):
    """
    Get a datetime object or a int() Epoch timestamp and return a
    pretty string like 'an hour ago', 'Yesterday', '3 months ago',
    'just now', etc
    """
    from datetime import datetime
    now = datetime.now()
    if type(time) is int:
        diff = now - datetime.fromtimestamp(time)
    elif isinstance(time, datetime):
        diff = now - time
    elif not time:
        diff = 0
    second_diff = diff.seconds
    day_diff = diff.days

    if day_diff < 0:
        return ''

    if day_diff == 0:
        if second_diff < 10:
            return "just now"
        if second_diff < 60:
            return str(second_diff) + " seconds ago"
        if second_diff < 120:
            return "a minute ago"
        if second_diff < 3600:
            return str(second_diff // 60) + " minutes ago"
        if second_diff < 7200:
            return "an hour ago"
        if second_diff < 86400:
            return str(second_diff // 3600) + " hours ago"
    if day_diff == 1:
        return "Yesterday"
    if day_diff < 7:
        return str(day_diff) + " days ago"
    if day_diff < 31:
        return str(day_diff // 7) + " weeks ago"
    if day_diff < 365:
        return str(day_diff // 30) + " months ago"
    return str(day_diff // 365) + " years ago"
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