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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _iter_year_month(year_info):
 """ Iter the month days in a lunar year. """

    # info => month, days, leap

    leap_month, leap_days = _parse_leap(year_info)
    months = [(i, 0) for i in range(1, 13)]
    if leap_month > 0:
        months.insert(leap_month, (leap_month, 1))
    for month, leap in months:
        if leap:
            days = leap_days
        else:
            days = (year_info >> (16 - month)) % 2 + 29
        yield month, days, leap