Get LatLong for addresses

geocode.py

import sys
import requests
import urllib
from typing import Iterator, Dict, Tuple, List

FILENAME = 'list.txt'
GOOGLE_MAPS_URL = 'https://maps.googleapis.com/maps/api/geocode/json'
API_KEY = ''


def read_file(filename: str) -> Iterator[str]:
    with open(filename, 'r') as source:
        return source.readlines()


def parse_google_maps_result(response_dict: Dict) -> Tuple[float, float]:
    try:
        results = response_dict.get('results', [])
        lat, lng = results[0]["geometry"]["location"].values()
        return (lat, lng)
    except Exception:
        return (None, None)


def main(args: List[str]) -> None:
    if args[0]:
        FILENAME = args[0]

    for line in read_file(FILENAME):
        address = line.splitlines()[0]
        response = requests.get(
            GOOGLE_MAPS_URL,
            params={
                'address': address,
                'key': API_KEY
            }
        ).json()
        lat, lng = parse_google_maps_result(response)
        print("{0} ; {1} , {2}".format(
            address, lat, lng
            )
        )


if __name__ == "__main__":
    main(sys.argv[1:])  # first args is always the script name