humanize.py 文件源码

python
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项目:tissuelab 作者: VirtualPlants 项目源码 文件源码
def naturaltime(value):
    """
    For date and time values shows how many seconds, minutes or hours ago
    compared to current timestamp returns representing string.
    """
    if not isinstance(value, date): # datetime is a subclass of date
        return value

    now = datetime.now(utc if is_aware(value) else None)
    if value < now:
        delta = now - value
        if delta.days != 0:
            return pgettext(
                'naturaltime', '%(delta)s ago'
            ) % {'delta': defaultfilters.timesince(value, now)}
        elif delta.seconds == 0:
            return _('now')
        elif delta.seconds < 60:
            return ungettext(
                # Translators: \\u00a0 is non-breaking space
                'a second ago', '%(count)s\u00a0seconds ago', delta.seconds
            ) % {'count': delta.seconds}
        elif delta.seconds // 60 < 60:
            count = delta.seconds // 60
            return ungettext(
                # Translators: \\u00a0 is non-breaking space
                'a minute ago', '%(count)s\u00a0minutes ago', count
            ) % {'count': count}
        else:
            count = delta.seconds // 60 // 60
            return ungettext(
                # Translators: \\u00a0 is non-breaking space
                'an hour ago', '%(count)s\u00a0hours ago', count
            ) % {'count': count}
    else:
        delta = value - now
        if delta.days != 0:
            return pgettext(
                'naturaltime', '%(delta)s from now'
            ) % {'delta': defaultfilters.timeuntil(value, now)}
        elif delta.seconds == 0:
            return _('now')
        elif delta.seconds < 60:
            return ungettext(
                # Translators: \\u00a0 is non-breaking space
                'a second from now', '%(count)s\u00a0seconds from now', delta.seconds
            ) % {'count': delta.seconds}
        elif delta.seconds // 60 < 60:
            count = delta.seconds // 60
            return ungettext(
                # Translators: \\u00a0 is non-breaking space
                'a minute from now', '%(count)s\u00a0minutes from now', count
            ) % {'count': count}
        else:
            count = delta.seconds // 60 // 60
            return ungettext(
                # Translators: \\u00a0 is non-breaking space
                'an hour from now', '%(count)s\u00a0hours from now', count
            ) % {'count': count}
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