pip install akshare python import akshare as ak python stock_zh_a_spot_df = ak.stock_zh_a_spot() print(stock_zh_a_spot_df) python stock_zh_a_hist_df = ak.stock_zh_a_hist(symbol="sh600000", start_date="20210101", end_date="20211231") print(stock_zh_a_hist_df) python stock_zh_a_spot_df.to_csv("stock_data.csv", index=False) python filtered_data = stock_zh_a_hist_df[stock_zh_a_hist_df["close"] > 10] sorted_data = stock_zh_a_hist_df.sort_values("date") stock_zh_a_hist_df["daily_return"] = stock_zh_a_hist_df["close"].pct_change()