Calculate distance between two points on Earth the latitute and longitude given in degrees - Codersarts

Python code:

from math import radians,cos,sin,asin,sqrt
#Read the input from user
print("Enter the latitute and longitude of two points on Earth in degrees.")
lat1=float(input("Latitute 1:"))
lat2=float(input("Latitute 2:"))
lon1=float(input("Longitute 1:"))
lon2=float(input("Longitute 2:"))
#try and convert the string input to a number
#tell the user off
#The math module contains a function named radians which converts from degrees to radians.
lat1=radians(lat1)
lat2=radians(lat2)
lon1=radians(lon1)
lon2=radians(lon2)
#Haversine formula
dlon=lon2-lon1;
dlat=lat2-lat1;
a=sin(dlat/2)**2+cos(lat2)*sin(dlon/2)**2
c=2*asin(sqrt(a))
r=6300  # radius of earth in kilometers.
print("Distance is:",c*r,"kilometers")