python-practice/picnic.py at master · maftoun95/python-practice · GitHub

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#declare dict
allGuests = {'Alice': {'apples': 5, 'pretzels': 12},
            'Bob': {'ham sandwiches': 3, 'apples': 2},
            'Carol': {'cups': 3, 'apple pies': 1}}
#define lookup function
def totalBrought(guests, item):
    numBrought = 0
    #loop through dict
    for k, v in guests.items():
        #increase numBrought by the value of item passed
        numBrought = numBrought + v.get(item, 0)
    #now that were done looping through dict, return numBrought
    return numBrought
print('Number of things being brought:')
print(' - Apples         ' + str(totalBrought(allGuests,'apples')))
print(' - Cups           ' + str(totalBrought(allGuests,'cups')))
print(' - Cakes          ' + str(totalBrought(allGuests,'cakes')))
print(' - Ham Sandwiches ' + str(totalBrought(allGuests,'ham sandwiches')))
print(' - Apple Pies     ' + str(totalBrought(allGuests,'apple pies')))