import requests

API_KEY = 'AIzaSyBoBHzeQFgR7O-NlNsuHXQcC1B7ccEHpl8'
url = "https://maps.googleapis.com/maps/api/distancematrix/json"
origin = '51.5636306598907,-0.11061106079085892'
dest = "51.53836609846008,-0.12743940233824352"

params = {
   "origins": origin,
   "destinations": dest,
   "key": API_KEY,
   "departure_time": "", # timstamp, optional
   "mode": "transit",  
}

r = requests.get(url, params=params)
print(r.status_code)

print(r.json())