Update app.py

app.py

@@ -11,16 +11,18 @@ df["Longitude"] = df["Longitude"].astype(float)
 st.title("Input a city and I'll take you there!")
 
 city_name = st.text_input("Please search for a city:")
-split_city_state = city_name.split(", ")
-state_name = split_city_state[1]
 
 if city_name != "": 
+    
     lat = df[df["City"] == city_name]["Latitude"].values[0]
     lon = df[df["City"] == city_name]["Longitude"].values[0]
     zipCode = df[df["City"] == city_name]["Zip"].values[0]
     city_list = []
     lat_list = []
     long_list = []
+    
+    split_city_state = city_name.split(", ")
+    state_name = split_city_state[1]
 
     city_list.append(city_name)
     lat_list.append(lat)