filters.py 文件源码

def ago_filter(dt):
    """
    Format a datetime using humanize.naturaltime, "ago"

    :param dt: datetime to compare to now
    :type dt: datetime.datetime
    :return: ago string
    :rtype: str
    """
    if dt == '' or dt is None or isinstance(dt, Undefined):
        return ''
    return naturaltime(dtnow() - dt)