defaultfilters.py 文件源码

def date(value, arg=None):
    """Formats a date according to the given format."""
    if value in (None, ''):
        return ''
    if arg is None:
        arg = settings.DATE_FORMAT
    try:
        return formats.date_format(value, arg)
    except AttributeError:
        try:
            return format(value, arg)
        except AttributeError:
            return ''