Real Stock Price Chart (GOOG, AAPL, SPY) with Source Code

Download historical stock prices for Google, Apple, and SPY. Read the file and draw the stock charts for these companies. The following figures show the stock prices for these companies:

Source Code:

import turtle

with open('spy.us.txt','r') as fin:
    lines = fin.readlines()
n = len(lines)-1
prices = [None]*n
for i in range(1,len(lines)):
    row = lines[i].split(',')
    prices[i-1] = float(row[4])
minprice, maxprice = min(prices),max(prices)

screen = turtle.Screen()
screen.title('Stock Price From File - PythonTurtle.Academy')
screen.setup(1000,1000)
screen.setworldcoordinates(0,minprice*0.9,n,maxprice*1.1)
turtle.speed(0)
turtle.hideturtle()
turtle.up()
turtle.goto(0,prices[0])
turtle.down()
for i in range(1,n):
    turtle.goto(i,prices[i])