Source: 📖 Python Cookbook ch1.8 p13

Calculating and sorting with dictionary data

Numeric dictionary data can be manipulated quite handily with the by inverting key-value pairs using the zip() function.

prices = {
	'ACME': 45.23
	'AAPL': 612.78
	'IBM': 205.55
	'HPQ': 37.50
	'FB': 10.75
}

min_price = min(zip(prices.values(), prices.keys()))	# (10.75, 'FB')
max_price = max(zip(prices.values(), prices.keys()))	# (612.78, 'AAPL')

Other comparative functions can also be used, such as sorted().