min,max,sortDict.py

prices={'ACME':45.23,
        'AAPL':612.78,
        'IBM':205.55,
        'HPQ':37.20,'FB':10.75}

min_price=min(zip(prices.values(),prices.keys()))# min_price is (10.75, 'FB')
max_price=max(zip(prices.values(),prices.keys()))# max_price is (612.78, 'AAPL')
#Similarly, to rank the data, use zip() with sorted(), as in the following:
prices_sorted=sorted(zip(prices.values(),prices.keys()))
# prices_sorted is [(10.75, 'FB'), (37.2, 'HPQ'),
#                   (45.23, 'ACME'), (205.55, 'IBM'),
#                   (612.78, 'AAPL')]
#When doing these calculations, be aware that zip()creates an iterator that can only beconsumed once. For example, the following code is an error:
prices_and_names=zip(prices.values(),prices.keys())
print(min(prices_and_names))# OK
print(max(prices_and_names))# ValueError: max() arg is an empty sequence