Update app_pyvis_new.py

app_pyvis_new.py

@@ -12,6 +12,8 @@ import random
 import geopandas as gpd
 import folium
 from shapely.geometry import mapping
+from shapely.geometry import Polygon
+from shapely.ops import unary_union
 import dropbox
 from dropbox.exceptions import ApiError
 import io