def winning_card(cards, trump=None): Playing cards are again represented as tuples of (rank,suit) as in the cardproblems.py lecture example program. In trick taking games such as whist or bridge, four...

def winning_card(cards, trump=None):

Playing cards are again represented as tuples of (rank,suit) as in the cardproblems.py
lecture example program. In trick taking games such as whist or bridge, four players each play

one card from their hand to the trick, committing to their play in clockwise order starting from the

player who plays first into the trick. The winner of the trick is determined by the following rules:
1. If one or more cards of the trump suit have been played to the trick, the trick is won by the

highest ranking trump card, regardless of the other cards played.
2. If no trump cards have been played to the trick, the trick is won by the highest card of the

suit of the first card played to the trick. Cards of any other suits, regardless of their rank, are

powerless to win that trick.
3. Ace is the highest card in each suit.
Note that the order in which the cards are played to the trick greatly affects the outcome of that

trick, since the first card played in the trick determines which suits have the potential to win the

trick in the first place. Return the winning card for the list of cards played to the trick.

Extracted text: cards trump Expected result 'diamonds'), [('three', 'spades'), ('ace', ('jack', 'spades'), ('eight', 'spades')] ('jack', 'spades') None 'clubs' ('two', 'clubs') [('ace', 'diamonds'), ('ace', 'hearts'), ('ace', 'spades'), ('two', 'clubs')] 'clubs'), ('ace', 'diamonds'), ('two', [('two', 'hearts'), ('ace', 'spades')] ('ace', None 'clubs')