Update app.py

app.py

@@ -76,6 +76,9 @@ def main():
         if st.button("East"):
             direction = "East"
 
+    if 'direction' not in locals():
+        direction = "None"
+    
     if direction != "None":
         st.session_state.locations = move_emojis(st.session_state.locations, current_location, direction)
         st.experimental_rerun()