Update app.py

app.py

@@ -43,10 +43,9 @@ with col2:
         value=(25, 75)
         )
 
-st.session_state.generation_done = False
 summ_text = None
 
-if uploaded_file is not None and not st.session_state.generation_done:
+if (uploaded_file is not None) and (not 'generation_done' in st.session_state):
     st.write(uploaded_file.name)
     bytes_data = uploaded_file.getvalue()
     st.write(len(bytes_data), "bytes")