Update app.py

app.py

@@ -113,26 +113,26 @@ col1_one = col1.button("CARTE", key="1")
 col2_one = col2.button("TABLEAU", key="2")
 col3_one = col3.button("SYNTHÈSE", key="3")
 
-if col1_one or session_state.col1:
-    session_state.col1 = True
-    session_state.col2 = False
-    session_state.col3 = False
+if col1_one or st.session_state.col1:
+    st.session_state.col1 = True
+    st.session_state.col2 = False
+    st.session_state.col3 = False
     sel_Map = st.selectbox("Choose Map type :", options=['Hello1', 'Hello2'], index=1)
     if sel_Map == 'Hello1':
         st.write("Hello world! 1")
     elif sel_Map == 'Hello2':
         st.write("Hello world! 2")
 
-if col2_one or session_state.col2:
-    session_state.col1 = False
-    session_state.col2 = True
-    session_state.col3 = False
+if col2_one or st.session_state.col2:
+    st.session_state.col1 = False
+    st.session_state.col2 = True
+    st.session_state.col3 = False
     st.write("Hello world! 3")
 
-if col3_one or session_state.col3:
-    session_state.col1 = False
-    session_state.col2 = False
-    session_state.col3 = True
+if col3_one or st.session_state.col3:
+    st.session_state.col1 = False
+    st.session_state.col2 = False
+    st.session_state.col3 = True
     st.write("Hello world! 4")