[Fixed]-How to get coordinates of address from Python

I would strongly recommend to use geopy. It will return the latitude and longitude, you can use it in the Google JS client afterwards.

>>> from geopy.geocoders import Nominatim
>>> geolocator = Nominatim()
>>> location = geolocator.geocode("175 5th Avenue NYC")
>>> print(location.address)
Flatiron Building, 175, 5th Avenue, Flatiron, New York, NYC, New York, ...
>>> print((location.latitude, location.longitude))
(40.7410861, -73.9896297241625)

Additionally you can specifically define you want to use Google services by using GoogleV3 class as a geolocator

>>> from geopy.geocoders import GoogleV3
>>> geolocator = GoogleV3()

Google Data has an API for Maps has a REST-ful API – and they also have a Python library built around it already.

Here is the code working for Google Maps API v3 (based on this answer):

import urllib
import simplejson

googleGeocodeUrl = 'http://maps.googleapis.com/maps/api/geocode/json?'

def get_coordinates(query, from_sensor=False):
    query = query.encode('utf-8')
    params = {
        'address': query,
        'sensor': "true" if from_sensor else "false"
    }
    url = googleGeocodeUrl + urllib.urlencode(params)
    json_response = urllib.urlopen(url)
    response = simplejson.loads(json_response.read())
    if response['results']:
        location = response['results'][0]['geometry']['location']
        latitude, longitude = location['lat'], location['lng']
        print query, latitude, longitude
    else:
        latitude, longitude = None, None
        print query, "<no results>"
    return latitude, longitude

See official documentation for the complete list of parameters and additional information.

Python package googlemaps seems to be very able to do geocoding and reverse geocoding.

The latest version of googlemaps package is available at: https://pypi.python.org/pypi/googlemaps