Update app.py

app.py

@@ -132,7 +132,7 @@ def get_prompt_by_row(symbol, row):
     head = "From {} to {}, {}'s stock price {} from {:.2f} to {:.2f}. Company news during this period are listed below:\n\n".format(
         start_date, end_date, symbol, term, row['Start Price'], row['End Price'])
     
-    news = row["News"]
+    news = row["News"] if isinstance(row["News"], list) else json.loads(row["News"])
     news_formatted = ["[Headline]: {}\n[Summary]: {}\n".format(
         n['headline'], n['summary']) for n in news if n['date'][:8] <= end_date.replace('-', '') and \
         not n['summary'].startswith("Looking for stock market analysis and research with proves results?")]
@@ -152,8 +152,13 @@ def sample_news(news, k=5):
 
 
 def latest_news(news, k=5):
+    # Ensure news is a list of dictionaries
+    if not isinstance(news, list):
+        raise ValueError("News must be a list of dictionaries.")
+    # Sort news by date in descending order and select the latest k items
     sorted_news = sorted(news, key=lambda x: x['date'], reverse=True)
     return sorted_news[:k]
+
     
 
 def get_current_basics(symbol, curday):
@@ -214,6 +219,7 @@ def get_all_prompts_online(symbol, data, curday, with_basics=True):
     return info, prompt
 
 
+
 def construct_prompt(ticker, curday, n_weeks, use_basics):
     try:
         steps = [n_weeks_before(curday, n) for n in range(n_weeks + 1)][::-1]