Lowes, Python - rextester

Lowes

Language: Layout:

# change 50 to the price of your cart
price = 51.94

from random import randint

# to update with new coupons search codes on community wiki
# in the below list all X off Y+ purchases with their 4 digit codes
# (x, y) refers to an $X off $Y+ purchase
# (x, 0) refers to a x% off entire pruchase
CODES = {
    (10, 50) : "0989"
    ,(20, 100) : "0978"
     ,(10, 0): "0921"
}

# define coupons

def applycoupon(i, j, price):
    """apply coupons"""
    price = 1.0*price
    if (i, j) in CODES:
        if j==0:
            return (1-(i/100.0))*price, CODES[(i, j)]
        elif price >= j:
            return price - i, CODES[(i, j)]
        else:
            return price, CODES[(i, j)]
    else:
        return price, "code not in dict"

def min_price_w_coupon(cartprice):
    """check the best coupon to apply to a cart"""
    p_w_coupon = cartprice
    code = "no applicable coupon"
    for key in CODES:
        i = key[0]
        j = key[1]
        test_coup = applycoupon(i, j, cartprice)
        test_coup_price = test_coup[0]
        test_coup_code = test_coup[1]
        if test_coup_price < p_w_coupon:
            p_w_coupon = test_coup_price
            code = test_coup_code
    return p_w_coupon, code

def addcheckdigit(stuff):
    checkdigit = 0
    for j in range(14):
        if j % 2 == 0:
            checkdigit += int(stuff[j])
        else:
            checkdigit += int(stuff[j]) * 3
    print(str(stuff) ) + str((10 -(checkdigit % 10))%10)

def coupon_generator(price):
    if min_price_w_coupon(price)[1]  == "no applicable coupon" or min_price_w_coupon(price)[1]  == "code not in dict":
        print("no applicable coupon")
    else:
        for j in range(100):
            i = randint(0, 50000)
            addcheckdigit("47000" + "%05d" % i + min_price_w_coupon(price)[1])

coupon_generator(price)

[ + ] Show input
Absolute running time: 0.17 sec, cpu time: 0.13 sec, memory peak: 5 Mb, absolute service time: 0,17 sec

470004826409929 470003798509927 470000481909927 470001323209922 470000296609920 470003357809925 470003364509924 470002015309920 470004374909926 470002460409923 470001806709925 470004857209925 470002359409928 470002622209927 470003833509929 470004367009923 470003370609922 470003837009920 470004108409920 470000775509925 470003430009921 470001519209927 470003124409921 470004119109925 470002101409923 470001523909929 470004293109926 470002125909928 470003928309922 470003808709927 470004266409923 470004699809925 470004353809926 470002316609927 470001153009921 470001120509928 470003084409924 470003519709926 470002665309929 470002174009921 470002171409922 470003722309920 470002757409926 470002245509923 470002844509928 470004270309929 470000142609920 470000456909921 470003145009926 470001195309928 470004446209923 470003787609928 470002865109923 470001496509928 470004491809925 470001354409926 470003019509927 470002173509927 470000358909920 470000866109928 470003582909926 470000235109924 470001470609927 470000504509929 470003534309927 470003327909921 470000626709924 470001480609924 470001758109927 470004402209929 470004544409928 470001824509927 470003196709929 470000833709922 470003622609922 470004531909929 470000351109921 470002389009921 470002060909922 470003706709920 470001724309924 470002866109922 470001415509923 470001334009924 470002883809928 470001906409923 470001121109929 470001404609924 470002833409925 470001148109926 470000132109928 470004927709928 470000999309929 470003791309920 470000549209921 470004136909928 470001096609929 470001988409927 470001325909929 470000239309924