Update app.py

app.py

@@ -135,9 +135,9 @@ def generate_ai_dashboard(df, api_key):
     # Generate data summary
     column_info = {col: {
         'dtype': str(df[col].dtype),
-        'unique_values': df[col].nunique(),
-        'missing_values': df[col].isna().sum(),
-        'sample': df[col].dropna().sample(min(5, len(df))).tolist()
+        'unique_values': int(df[col].nunique()),
+        'missing_values': int(df[col].isna().sum()),
+        'sample': [str(x) for x in df[col].dropna().sample(min(5, len(df))).tolist()]
     } for col in df.columns}
     
     # Prepare prompt