geocoding.py

import requests

MAPS_API_KEY = 'secret'

def geocode(address):
    url = 'https://maps.googleapis.com/maps/api/geocode/json'
    params = {
        'address': address,
        'key': MAPS_API_KEY
    }
    r = requests.get(url, params=params)
    data = r.json()['results']
    if data:
        lat = data[0]['geometry']['location']['lat']
        lng = data[0]['geometry']['location']['lng']
        return lat, lng