Reverse Geocoding using Mapquest API and Python

Hi Everyone so I am trying to Geocode using the Mapquest API. I want to do reverse geocoding by giving the LAT/LONG CSV and process it through a Python Script using Mapquest API. I created the script below but when I get my output from the script I get no response. Can anyone tinker with my script so that I get the JSON out of it and I can parse the address data from the geocoding to another file. Thanks

Here is my input CSV sample Data

objectID    lat lon
1   52.36732733 4.9491406

My Python Script

import pandas as pd
import json
import requests 

df = pd.read_csv('/Users/albertgonzalobautista/Desktop/Testing_MPQ.csv')

# create new columns
df['geocode_data'] = ''
df['address']=''

# function that handles the geocoding requests

def reverseGeocode(latlng):
    result = {}
    url = 'http://www.mapquestapi.com/geocoding/v1/address?key={1}'
    apikey = 'XXX'
    request = url.format(latlng, apikey)
    data = json.loads(requests.get(request).text)
    if len(data['results']) > 0:
        result = data['results'][0]
    return  result

for i, row in df.iterrows():
    df['geocode_data'][i] = reverseGeocode(df['lat'][i].astype(str) + ',' + df['lon'][i].astype(str))

df.to_csv('test8.csv', encoding='utf-8', index=False)

The output of my script

objectID    lat lon geocode_data
1   52.36732733 4.9491406   {'providedLocation': {}, 'locations': []}

Copyright Notice：Content Author:「Gonzalo68」，Reproduced under the CC 4.0 BY-SA copyright license with a link to the original source and this disclaimer.
Link to original article：https://stackoverflow.com/questions/31929066/reverse-geocoding-using-mapquest-api-and-python