Update app.py

app.py

@@ -120,8 +120,12 @@ def main():
 
             with c1:
                 st.markdown("#### Words identified as complex")
-                for w in words:
-                    st.markdown(f"* {w}")
+                if words:
+                    for w in words:
+                        st.markdown(f"* {w}")
+
+                else:
+                    st.markdown("None :smile:")
 
             with c2:
                 st.markdown(f"#### Original Sentence:\n > {input_sentence}")