Calculating distance for csv file

dist_calc.py

import googlemaps
import csv

gmaps = googlemaps.Client('YOUR_API_KEY_HERE')

with open('NAME_OF_FILE.csv') as info:
    read = csv.reader(info)
    ans = []
    for row in read:
        ans.append(row[0] + ", Hong Kong")
    start = 0 #replace this with starting value
    for i in range(start, 450, 10):
        for row in gmaps.distance_matrix(ans[i:i+10], ["#25 Man Fuk Road, Hong Kong"]*len(ans[i:i+10]), mode="driving")['rows']:
            try:
                print ans[start] + " - " + row['elements'][0]['duration']['text']
            except:
                print ans[start] + " - " + str(row['elements'][0])
            start += 1