Get A Random Value from dictionary in Python

How can I get a random pair from a dict? I'm making a game on black jack so user will get a random pair from

deck_of_cards = {'A':11,'2':2,'3':3,'4':4,'5':5,'6':6,'7':7,'8':8,'9':9,'10':10,'J':10,'Q':10,'K':10}

and it will get stored in a dictionary

player_deck = {}

How can I do this?