Update app.py

app.py

@@ -48,8 +48,9 @@ else:
             df = None
 
         if df is not None:
-            # Convert object columns to numeric where possible
-            df = df.apply(pd.to_numeric, errors='ignore')
+            # Convert object columns to numeric where possible, handle errors explicitly
+            for column in df.select_dtypes(include=['object']).columns:
+                df[column] = pd.to_numeric(df[column], errors='coerce')
 
             st.write("Original Data:")
             st.write(df)
@@ -75,8 +76,11 @@ else:
                     result = tqa(table=df, query=question)
 
                     # Check if TAPAS is returning the expected answer
-                    answer = result['answer']
-                    st.write(f"TAPAS Answer: {answer}")
+                    answer = result.get('answer', None)
+                    if answer:
+                        st.write(f"TAPAS Answer: {answer}")
+                    else:
+                        st.warning("TAPAS did not return a valid answer.")
 
                     # Determine if the question relates to graph generation
                     if 'between' in question.lower() and 'and' in question.lower():