daviddoji/example-code-2e
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

sync with O'Reilly Atlas

Browse Source
This commit is contained in:
Luciano Ramalho
2021-07-07 23:45:54 -03:00
parent f0f160844d
commit 23e78eeb82
64 changed files with 2087 additions and 124 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
05-data-classes/frenchdeck.doctest Normal file
View File

@@ -0,0 +1,64 @@
>>> from frenchdeck import FrenchDeck, Card
>>> beer_card = Card('7', 'diamonds')
>>> beer_card
Card(rank='7', suit='diamonds')
>>> deck = FrenchDeck()
>>> len(deck)
52
>>> deck[:3]
[Card(rank='2', suit='spades'), Card(rank='3', suit='spades'), Card(rank='4', suit='spades')]
>>> deck[12::13]
[Card(rank='A', suit='spades'), Card(rank='A', suit='diamonds'), Card(rank='A', suit='clubs'), Card(rank='A', suit='hearts')]
>>> Card('Q', 'hearts') in deck
True
>>> Card('Z', 'clubs') in deck
False
>>> for card in deck: # doctest: +ELLIPSIS
... print(card)
Card(rank='2', suit='spades')
Card(rank='3', suit='spades')
Card(rank='4', suit='spades')
...
>>> for card in reversed(deck): # doctest: +ELLIPSIS
... print(card)
Card(rank='A', suit='hearts')
Card(rank='K', suit='hearts')
Card(rank='Q', suit='hearts')
...
>>> for n, card in enumerate(deck, 1): # doctest: +ELLIPSIS
... print(n, card)
1 Card(rank='2', suit='spades')
2 Card(rank='3', suit='spades')
3 Card(rank='4', suit='spades')
...
Sort with *spades high* overall ranking
# tag::SPADES_HIGH[]
>>> Card.suit_values = dict(spades=3, hearts=2, diamonds=1, clubs=0) # <1>
>>> def spades_high(card): # <2>
... rank_value = FrenchDeck.ranks.index(card.rank)
... suit_value = card.suit_values[card.suit]
... return rank_value * len(card.suit_values) + suit_value
...
>>> Card.overall_rank = spades_high # <3>
>>> lowest_card = Card('2', 'clubs')
>>> highest_card = Card('A', 'spades')
>>> lowest_card.overall_rank() # <4>
0
>>> highest_card.overall_rank()
51
# end::SPADES_HIGH[]
>>> for card in sorted(deck, key=Card.overall_rank): # doctest: +ELLIPSIS
... print(card)
Card(rank='2', suit='clubs')
Card(rank='2', suit='diamonds')
Card(rank='2', suit='hearts')
...
Card(rank='A', suit='diamonds')
Card(rank='A', suit='hearts')
Card(rank='A', suit='spades')