Update app.py to handle portfolio dataframe more effectively and streamline data display

- Modified error handling to set 'portfolio_df' to None when an exception occurs, improving data integrity.
- Removed unnecessary display of 'check_working_df' to enhance user interface clarity.
- These changes aim to improve data management and user experience by ensuring only relevant information is presented.

app.py

@@ -186,7 +186,7 @@ with tab1:
             
             st.session_state['portfolio_df'] = st.session_state['portfolio_df'][['BaseName', 'EntryCount'] + original_columns]
         except:
-            pass
+            st.session_state['portfolio_df'] = None
             
 
     if 'Contest_file' in st.session_state:
@@ -212,7 +212,6 @@ with tab1:
             if 'portfolio_df' in st.session_state:
                 st.write('Portfolio data:')
                 st.dataframe(st.session_state['portfolio_df'].head(25))
-                st.table(st.session_state['Contest'])
             else:
                 pass
         
@@ -312,7 +311,6 @@ with tab2:
             working_df['percentile_finish'] = working_df['index'].rank(pct=True)
             working_df['finish'] = working_df['index']
             working_df = working_df.drop(['sorted', 'index'], axis=1)
-            st.session_state['check_working_df'] = working_df
         
         elif type_var == 'Showdown':
             # Vectorized stack calculation for Showdown
@@ -386,7 +384,6 @@ with tab2:
             working_df['percentile_finish'] = working_df['index'].rank(pct=True)
             working_df['finish'] = working_df['index']
             working_df = working_df.drop(['sorted', 'index'], axis=1)
-            st.session_state['check_working_df'] = working_df
         
         # Store results
         st.session_state['field_player_frame'] = create_player_exposures(working_df, st.session_state['player_columns'])
@@ -462,7 +459,7 @@ with tab2:
                         st.session_state['display_contest_info'] = st.session_state['display_contest_info'][~mask]
                     if st.session_state['low_entries_var'] and st.session_state['high_entries_var']:
                         st.session_state['display_contest_info'] = st.session_state['display_contest_info'][st.session_state['display_contest_info']['EntryCount'].between(st.session_state['low_entries_var'], st.session_state['high_entries_var'])]
-    st.table(st.session_state['check_working_df'])
+
     if 'display_contest_info' in st.session_state:
         # Initialize pagination in session state if not exists
         if 'current_page' not in st.session_state: