import random

money = input('Total money: ')
mi = int(money)

Food = ['Taco', 'Burrito', 'Nacho']
Price = [6, 4, 2]
Dict = {f:p for (f, p) in zip(Food, Price)}

while mi >= 0:
    RFS = random.sample(Food, 1)[0]
    cost = Dict[RFS]
    mi = mi - cost
    print("item: {} cost: {} money you have: {} ".format(RFS,cost,mi))

import random

money = int(input('Total money: '))

Food = ['Taco', 'Burrito', 'Nacho']
Price = [6, 4, 2]
Dict = {f:p for (f, p) in zip(Food, Price)}
Purchases = {f:0 for f in Dict}

stop = False
while not stop:
    for i in Dict:
        cost = Dict[i]
        if money - cost < 0:
            stop = True
            break
        else:
            money -= cost
            Purchases[i] += 1

print(Purchases)

import random

money = input('Total money: ')
mi = int(money)

Food = ['Taco', 'Burrito', 'Nacho']
Price = [6, 4, 2]
Dict = {f:p for (f, p) in zip(Food, Price)}

totals = {'Taco': 0, 'Burrito': 0, 'Nacho': 0, 'Change': 0}

while mi > 0:
    RFS = random.sample(Food, 1)[0]
    cost = Dict[RFS]
    if cost <= mi:
        mi += - cost
        print("item: {} cost: {} money you have: {} ".format(RFS, cost, mi))
        totals[RFS] += 1
    elif all(i > mi for i in Price):
        totals['Change'] = mi
        break

print(totals)

Total money: 11
item: Nacho cost: 2 money you have: 9
item: Taco cost: 6 money you have: 3
item: Nacho cost: 2 money you have: 1
{'Taco': 1, 'Burrito': 0, 'Nacho': 2, 'Change': 1}

from collections import Counter
money = input('Total money: ')
mi = int(money)
Food = ['Taco', 'Burrito', 'Nacho']
Price = [6, 4, 2]
Dict = {f:p for (f, p) in zip(Food, Price)}
purchase_ls = []
while mi >= min(Price):
    for aFood in Food:
        if mi < int(Price[Food.index(aFood)]):
            continue
        purchase_ls.append(aFood)
        cost = int(Price[Food.index(aFood)])
        mi = mi - cost
        print("item: {} cost: {} money you have: {} ".format(aFood,cost,mi))
        if mi <= 0:
            break
print(dict(Counter(purchase_ls)))

Total money: 22
item: Taco cost: 6 money you have: 16
item: Burrito cost: 4 money you have: 12
item: Nacho cost: 2 money you have: 10
item: Taco cost: 6 money you have: 4
item: Burrito cost: 4 money you have: 0
{'Taco': 2, 'Burrito': 2, 'Nacho': 1}

Total money: 20
item: Taco cost: 6 money you have: 14
item: Burrito cost: 4 money you have: 10
item: Nacho cost: 2 money you have: 8
item: Taco cost: 6 money you have: 2
item: Nacho cost: 2 money you have: 0
{'Taco': 2, 'Burrito': 1, 'Nacho': 2}

Total money: 10
item: Taco cost: 6 money you have: 4
item: Burrito cost: 4 money you have: 0
{'Taco': 1, 'Burrito': 1}