fix bug len(geosubset)=0

app.py

@@ -92,12 +92,15 @@ with st.form("inputs"):
         latlong_geo.to_crs(epsg=3857, inplace=True)
         
         # Filter geosubset to only properties (sold since 2017)
-        geosubset = geosubset[(geosubset['storey'] <= input_storey + 5) & (geosubset['storey'] >= input_storey - 5)] # filter storey +- 5
-        geosubset = geosubset[(geosubset['age_asof_t'] <= input_age_asof_transaction + 3) & (geosubset['age_asof_t'] >= input_age_asof_transaction - 3)] # filter age +- 3
-        geosubset = geosubset[(geosubset['floor_area'] <= input_floor_area_sqft + 100) & (geosubset['floor_area'] >= input_floor_area_sqft - 100)] # filter floor area to +- 50m
-        geosubset = geosubset[geosubset['propertyTy'] == input_propertyType] # filter property type
-        geosubset['distance_to_property'] = geosubset.geometry.apply(lambda x: latlong_geo.distance(x)) # filter property radius within 1km
-        geosubset = geosubset[geosubset['distance_to_property'] <= 1000] # filter distances within 1km
+        try:
+            geosubset = geosubset[(geosubset['storey'] <= input_storey + 5) & (geosubset['storey'] >= input_storey - 5)] # filter storey +- 5
+            geosubset = geosubset[(geosubset['age_asof_t'] <= input_age_asof_transaction + 3) & (geosubset['age_asof_t'] >= input_age_asof_transaction - 3)] # filter age +- 3
+            geosubset = geosubset[(geosubset['floor_area'] <= input_floor_area_sqft + 100) & (geosubset['floor_area'] >= input_floor_area_sqft - 100)] # filter floor area to +- 50m
+            geosubset = geosubset[geosubset['propertyTy'] == input_propertyType] # filter property type
+            geosubset['distance_to_property'] = geosubset.geometry.apply(lambda x: latlong_geo.distance(x)) # filter property radius within 1km
+            geosubset = geosubset[geosubset['distance_to_property'] <= 1000] # filter distances within 1km
+        except:
+            pass
 
         if input_propertyType == 'Apartment':
             propertyType_Apartment = 1
@@ -108,7 +111,7 @@ with st.form("inputs"):
         elif input_propertyType == 'HDB':
             propertyType_HDB = 1        
 
-        latlong_geo['district'] = postal_final.loc[postal_final['2dpostal'] == input_postal[:2], 'district'].item()
+        latlong_geo['district'] = postal_final.loc[postal_final['2dpostal'] == input_postal[:2], 'district'].item() # all districts are covered in train set
         latlong_geo['storey'] = input_storey
         latlong_geo['age_asof_transaction'] = input_age_asof_transaction
         latlong_geo['mindist_expway'] = latlong_geo.geometry.apply(lambda x: expressway.distance(x).min())