balance = 1.0    # amount of reserve tokens
supply = 1000.0  # amount of smart tokens
crr = 0.001      # arbitrary reserve ratio

def printInfo():
    price = computePrice()
    print "balance", balance, "supply", supply, "price", price

def computePrice():
    return balance / (supply * crr)

print "Initial price", computePrice()

# keep buying
i = 0
while True:

    # debug
    if i % 10000 == 0:
        printInfo()
        import time
        time.sleep(0.1)
    i+=1

    # how much to purchase: 1.0 reserve token
    purchase = 1.0
    price = computePrice()
    balance += purchase
    supply += purchase / price