wha.py

running

[nagisa@godbox Desktop]$ python wha.py 
Would you like to see the price now (Y/N) ?n
Price now is: 6.02
Price now is: 6.02
Price now is: 6.13
Price now is: 6.13
Price now is: 6.13
Price now is: 6.13
Price now is: 5.47
Buy!!

wha.py

import urllib.request
import time

def get_price() :
    page = urllib.request.urlopen("http://www.beans-r-us.biz/prices.html")
    text = page.read().decode("utf8")
    where = text.find('>$')
    start_of_price = where + 2
    end_of_price = start_of_price + 4
    print("Price now is: "+text[start_of_price:end_of_price])
    return float(text[start_of_price:end_of_price])

price_now = input("Would you like to see the price now (Y/N) ?")
if price_now == "y":
    print(get_price())
else:
    price = get_price()
    while price>6.00:
        time.sleep(30)
        price = get_price()
    print("Buy!!")