def main():
air_hood = AirBnBNeighborhood(db_name=DB_NAME, coll_name=COLL_NAME)
hoods_dict = list(air_hood.coll.find({}, {'_id': 1}))
for hood in hoods_dict:
hood_id = hood['_id']
air_hood.pull_from_db(neighborhood_id=hood_id)
air_hood.extract_and_add_features()
print "Extracting Features for %s" % hood_id
