300.754178236262248 103.453277023380423 0,276.62980277988612 90.123295023340319 0,269.345711570634421 103.319531391674346 0,293.447811515317824 116.649513392506364 0,300.754178236262248 103.453277023380423 0

import math

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

li = []
res = []
with open("/Users/jin/points.txt") as filestream:
    for line in filestream:
        temp = line.split(",") #splits by the comma in a single list

        for i in temp:
            temp = i.split(" ") #splits by spaces to individual lists of points
            li.append(temp) #list of lists containing each point
    # for item in li:
    #   x1 = item[1]
    #   y1 = item[0]

    # for item in li:
    #   for pt in item:
    #       print pt

    for index in range(len(li)-1):
        one = li[index]
        two = li[index+1]
        x1 = float(one[0])
        y1 = float(one[1])
        x2 = float(two[0])
        y2 = float(two[1])
        res.append(calc(x1, y1, x2, y2))
    print res