feedparser.py 文件源码

def _parse_date_rfc822(dt):
    """Parse RFC 822 dates and times, with one minor
    difference: years may be 4DIGIT or 2DIGIT.
    http://tools.ietf.org/html/rfc822#section-5"""
    try:
        m = _rfc822_match(dt.lower()).groupdict(0)
    except AttributeError:
        return None

    return _parse_date_group_rfc822(m)