L360 updated

utils/ui_helper.py

@@ -177,7 +177,9 @@ def main_algo_trader():
                             f"The algorithm suggests to hold the following stocks for the current month (equally weighted): {recent_selected_stocks}"
                         )
                     except:
-                        st.warning("Oops! No data found due during API calls. Please refresh the screen and rerun the simulation.")
+                        st.warning(
+                            "Oops! No data found due during API calls. Please refresh the screen and rerun the simulation."
+                        )
 
             with col2:
                 # Download
@@ -350,9 +352,12 @@ def main_algo_trader_chinese():
             with col1:
                 # Checkpoint: ask user whether they want portfolio weights
                 if csv:
-                    recent_selected_stocks = df["portfolio_history"][-1]
-                    recent_selected_stocks = ", ".join(recent_selected_stocks)
-                    st.success(f"算法建议在本月持有以下股票（均仓位）: {recent_selected_stocks}")
+                    try:
+                        recent_selected_stocks = df["portfolio_history"][-1]
+                        recent_selected_stocks = ", ".join(recent_selected_stocks)
+                        st.success(f"算法建议在本月持有以下股票（均仓位）: {recent_selected_stocks}")
+                    except:
+                        st.warning("网络信号可能刚才没有收集到数据，请刷新网络然后重新跑以上算法。")
 
             with col2:
                 # Download