添加 lightweight-charts=2.1 版本号， https://github.com/louisnw01/lightweight-charts-python

chart.py

@@ -3,7 +3,7 @@ import pandas as pd
 from loguru import logger
 import talib as ta
 import numpy as np
-from lightweight_charts import Chart
+from lightweight_charts import Chart  # lightweight-charts==2.1
 
 
 import random
@@ -394,7 +394,7 @@ class QuantChart:
                 self.update_legend(
                     chart=chart,
                     key="Crosshair Price Profit%",
-                    text=f"Crosshair Price Profit%: {profit:.2f}%",
+                    text=f"crosshair_price_profit%: {profit:.2f}%",
                 )
 
         chart.win.handlers["crosshair_price"] = lambda p: on_crosshair_price(p)