関連ワード:  does python start at 0 or 1    does python index start at 0 or 1    does python range start at 0 or 1    does python list start at 0 or 1    does python array start at 0 or 1    does python start counting at 0 or 1    does python enumerate start at 0 or 1    python does len start at 0 or 1    does python for loop start at 0 or 1    python start at 0 or 1