56a1b187cec08cea9e41b38764a614a7c843dc4d,QUANTAXIS/QAFetch/QAQuery_Advance.py,,QA_fetch_stock_list_adv,#Any#,309

Before Change

    :param collections: mongodb 数据库
    :return: DataFrame
    """
    stock_list_items = [item for item in collections.find()]
    if len(stock_list_items) == 0:
        print("QA Error QA_fetch_stock_list_adv call item for item in collections.find() return 0 item, maybe the DATABASE.stock_list is empty!")
        return
    return pd.DataFrame(stock_list_items).drop("_id", axis=1, inplace=False)

After Change

    if len(stock_list_items) == 0:
        print("QA Error QA_fetch_stock_list_adv call item for item in collections.find() return 0 item, maybe the DATABASE.stock_list is empty!")
        return None
    return pd.DataFrame(stock_list_items).drop("_id", axis=1, inplace=False).set_index("code",drop=False)


def QA_fetch_index_list_adv(collections=DATABASE.index_list):
    """

Instances