Python and Google Maps API place search: Read csv read row by row and loop fuction

I want to automate a task in Python with the Google API Search Place. Right now, my code with Google Maps API is returning places ‘hospital’ for one set of geographic coordinates.

But, I have a CSV file which contains many geographic coordinates.

1: Hanoi 10.762622, 106.660172
2: Ho Chi Minh 12.762622, 108.660175
3: Ho Chi Minh 11.8542, 108.660175 
4: ...
5: ...

As you can see in my code, this is not efficient because I need to change the geographic coordinates manually.

For each row (geographic coordinates) in my CSV file, I want my code to read the geographic coordinates 1: Hanoi and give me results ‘hospitals’ for this geographic coordinates. After read row 2: Ho Chi Minh and same for all the other rows.

How I can achieve that or any good examples of making tasks like this more efficient?

import urllib
import urllib.request
import json

googleGeocodeUrl = 'https://maps.googleapis.com/maps/api/place/textsearch/json?query='
keyword = "hospital"
geolocation = "&location=-12.135,-77.023&radius=5000"
APIKEY = '&key='+'apikey'

url = googleGeocodeUrl + keyword + geolocation + APIKEY
print(url)

url = googleGeocodeUrl + keyword + geolocation + APIKEY
json_response = urllib.request.urlopen(url)
search = json_response.read().decode('utf-8')
searchjson = json.loads(search)

export = open('hopital.csv','w')
for place in searchjson['results']:
    print(place['name'])
    print(place['geometry']['location'])
export.write(place['name']+','+str(place['geometry']['location']['lng'])
 +','+str(place['geometry']['location']['lat'])+'n')
export.close() 

import csv

filename = "C:/gistemp/samplefile.csv"
# ID, city, lat, lng
# 1: Hanoi 10.762622, 106.660172


f = open(filename, "rU")
reader = csv.reader(f, delimiter=",")

rownum = 0  
arr = []

for i in reader:
    arr.append (i)
    rownum += 1

f.close()


for i in arr:
    ID = i[0]
    city = i[1]
    lat = i[2]
    lng = i[3]
    # reat of your code inside this loop...



    #geolocation = "&location=" + lat + "," + lng + "&radius=