cheeses = ["adam", "bree", "camambert", "gouda", "grouyer"]

entitled_cheeses = []
i=0
while i<len(cheeses):
    entitled_cheeses.append(cheeses[i].title())
    i+=1
print(entitled_cheeses)

entitled_cheeses = []
for cheese  in cheeses:
    entitled_cheeses.append(cheese.title())
print(entitled_cheeses)

[cheese.title() for cheese in cheeses]

[2**pow  for pow in range(16)]

[len(cheese) for cheese in cheeses]

cheese_prices = {
    'Adam' : 2,
    'Bree' : 3,
    'Camambert' : 4,
    'Gouda' : 5
}

missing = { 'Adam' }

buy = ['Adam', 'Bree']
# buy_prices = [ cheese_prices[item]   for item in buy]

total = sum([ cheese_prices[item]   for item in buy])
print(total)

total = sum([ cheese_prices[item] for item in buy if item not in missing])
print(total)

item in missing

new_prices = { 
    cheese: price*1.1    for cheese, price in cheese_prices.items() }
print(new_prices)

d144 = { "avi" : "053",
            "ben" : "054",
            "gaddy" : "055"}
d441 = { phone:name      for name, phone in d144.items() } 

print(d441)

d = {}
reverse_d = {value:key for key, value in d.items()}