Update app.py

app.py

@@ -12,31 +12,34 @@ st.title("Input a city and state I'll take you there! - Ex. Mound, MN")
 
 city_and_state_string = st.text_input("Please search for a city:")
 
-if city_and_state_string != "": 
-    
-    split_city_state = city_and_state_string.split(", ")
-    state_name = split_city_state[1]
-    city_name = split_city_state[0]
-    
-    #create a dataframe consisting of the correct city input
-    city_df = df[df["City"] == city_name]
-    
-    
-    #use the city dateframe to confirm you are using the right map
-    lat = city_df[city_df["State"] == state_name]["Latitude"].values[0]
-    lon = city_df[city_df["State"] == state_name]["Longitude"].values[0]
-    zipCode = city_df[city_df["State"] == state_name]["Zip"].values[0]
-    city_list = []
-    lat_list = []
-    long_list = []
-    
-
-    city_list.append(city_name)
-    lat_list.append(lat)
-    long_list.append(lon)
-    st.map(pd.DataFrame({'cities' : city_list, 'lat' : lat_list, 'lon' : long_list}))
-    st.write(city_name, "is located at: ", lat, ",", lon)
-    st.write("The zip code is: ", zipCode)
 
+try: 
+    if city_and_state_string != "": 
+        
+        split_city_state = city_and_state_string.split(", ")
+        state_name = split_city_state[1]
+        city_name = split_city_state[0]
+        
+        #create a dataframe consisting of the correct city input
+        city_df = df[df["City"] == city_name]
+        
+        
+        #use the city dateframe to confirm you are using the right map
+        lat = city_df[city_df["State"] == state_name]["Latitude"].values[0]
+        lon = city_df[city_df["State"] == state_name]["Longitude"].values[0]
+        zipCode = city_df[city_df["State"] == state_name]["Zip"].values[0]
+        city_list = []
+        lat_list = []
+        long_list = []
+        
+    
+        city_list.append(city_name)
+        lat_list.append(lat)
+        long_list.append(lon)
+        st.map(pd.DataFrame({'cities' : city_list, 'lat' : lat_list, 'lon' : long_list}))
+        st.write(city_name, "is located at: ", lat, ",", lon)
+        st.write("The zip code is: ", zipCode)
+except: 
+    st.write("Did you misspell something?")