

def father(year=None):
    "\n    the 3rd Sunday in June\n    :param year: int\n    :return: Father's day\n    "
    june_first = (datetime.date(_year, 6, 1) if (not year) else datetime.date(int(year), 6, 1))
    weekday_seq = june_first.weekday()
    return datetime.date(june_first.year, 6, (21 - weekday_seq))

dataset/ETHPy150Open shinux/PyTime/pytime/pytime.py father/original