Calculate the distance (in km or in miles) bewteen two points on Earth, located by their latitude and longitude.
>>> from haversine import haversine
>>> lyon = (45.7597, 4.8422)
>>> paris = (48.8567, 2.3508)
>>> haversine(lyon, paris)
392.21671780659625 # in kilometers
>>> haversine(lyon, paris, miles=True)
243.71209416020253 # in miles$ pip install haversine