find distance between two points in opencv python code example

Example 1: distance formula in python

import math.
def calculateDistance(x1,y1,x2,y2):
dist = math.sqrt((x2 - x1)**2 + (y2 - y1)**2)
return dist.
print calculateDistance(x1, y1, x2, y2)

Example 2: calculate distance in python

from math import sqrt
def main():
	point1x, point1y = eval(input("Please enter coordinates of Point1 (use commas) "))
	point2x, point2y = eval(input("Please enter coordinates of Point2 (use commas)"))
	
	Distance = sqrt((point1x-point2x)**2 + (point1y-point2y)**2)
	print("The distance between this two points is", str(round(Distance, 4))+" units")

Example 3: find distance between two points in opencv python

import math.
def calculateDistance(x1,y1,x2,y2):
  dist = math.sqrt((x2 - x1)**2 + (y2 - y1)**2)
  return dist
print calculateDistance(x1, y1, x2, y2)