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pythongoogle-mapsdistance

Calculate distance between 2 points in google maps using python

I get longitude and latitude using gmail geocode function. Now i need to calculate distance between 2 points. I found Haversine formula and it works well, but then in google js api i found method computeDistanceBetween(lat,lng) in the Geometry Library. My question is there a function or library for python?

Solution 
  • from math import *

def greatCircleDistance((lat1, lon1), (lat2, lon2)):
  def haversin(x):
    return sin(x/2)**2 
  return 2 * asin(sqrt(
      haversin(lat2-lat1) +
      cos(lat1) * cos(lat2) * haversin(lon2-lon1)))

    This returns the angular distance between the points on a sphere. To get a distance in length (kilometers), multiply the result with the Earth radius.

    But you could have it looked up in a formula collection as well, hence the bunch of downvotes ;-)