TypeError: strptime() argument 1 must be str, not datetime.date

[ardeal]

请问大佬，
安装好所有的package之后，执行 python main.py， 提示下面的错误， 怎么解呢？

Traceback (most recent call last):
  File "D:\code_stock\Sequoia\main.py", line 30, in <module>
    work_flow.prepare()
  File "D:\code_stock\Sequoia\work_flow.py", line 42, in prepare
    process(stocks, strategies)
  File "D:\code_stock\Sequoia\work_flow.py", line 50, in process
    check(stocks_data, strategy, strategy_func)
  File "D:\code_stock\Sequoia\work_flow.py", line 56, in check
    results = dict(filter(m_filter, stocks_data.items()))
  File "D:\code_stock\Sequoia\work_flow.py", line 67, in end_date_filter
    return strategy_fun(stock_data[0], stock_data[1], end_date=end_date)
  File "D:\code_stock\Sequoia\strategy\backtrace_ma250.py", line 72, in check
    date_diff = datetime.date(datetime.strptime(recent_lowest_row['日期'], '%Y-%m-%d')) - \
TypeError: strptime() argument 1 must be str, not datetime.date

[ardeal]

@sngyai

`Sequoia\strategy\backtrace_ma250.py'的第72行，有bug，应该按照下面的方式修改：

    if not data_end.empty:
        # 后半段必须在年线以上运行（回踩年线）
        for index, row in data_end.iterrows():
            if row['收盘'] < row['ma250']:
                return False
            if row['收盘'] < recent_lowest_row['收盘']:
                recent_lowest_row = row

    # date_diff = datetime.date(datetime.strptime(recent_lowest_row['日期'], '%Y-%m-%d')) - \
    #             datetime.date(datetime.strptime(highest_row['日期'], '%Y-%m-%d'))


    date_diff = recent_lowest_row['日期'] - highest_row['日期']

    if not(timedelta(days=10) <= date_diff <= timedelta(days=50)):
        return False
    # 回踩伴随缩量