Zip Code Distance Check via API

request.py

import requests
import csv

# zip code api variables
API_URL = 'https://api.zip-codes.com/ZipCodesAPI.svc/1.0/CalculateDistance/ByZip?'
ZIPS = ["T5T 4J2", "J3V 5K1", "H9R 1C4", "G1V 2L1", "H7T 1C8", "H3B 5K4", "H3P 3E9", "J4Y 0L1", "H1M 1W9", "J1L 1K1", "G2K 1N4"]

# API Key
APIKEY = 'HIDDEN'

# csv variables
FILE = '/root/customers_master.csv'

with open(FILE, 'rb') as csvfile:
    reader = csv.DictReader(csvfile)
    for row in reader:
        #print(row)
        for ZIP in ZIPS:
            with open('/root/Projects/zipcode-api/output.csv', 'a') as SAVE:
                if row['zip'] == "":
                    print("No Zip","Error")
                else:
                    ORIG = row['zip']
                    payload = { 'fromzipcode': ORIG, 'tozipcode': ZIP, 'key': APIKEY }
                    r = requests.get(API_URL, params=payload)
                    data = r.json()
                    try:
                        d = data['DistanceInMiles']
			obj = (ORIG + ',' + ZIP + ',' + str(d) + ',')
			print(obj)
		        SAVE.write(obj + '\n' )
                    except KeyError:
                        d = "Error"
			obj = (ORIG + ',' + ZIP + ',' + str(d) + ',')
			print(obj)
		        SAVE.write(obj + '\n' )
                SAVE.close()