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Author: ramalho

code/05-data-classes/dataclass/hackerclub.py

@@ -2,17 +2,17 @@
 """
 ``HackerClubMember`` objects accept an optional ``handle`` argument::
 
-    >>> anna = HackerClubMember('Anna Ravenscroft', handle='AnnaRaven')
+    >>> anna = HackerClubMember('Anna Ravenscroft', handle='raven')
     >>> anna
-    HackerClubMember(name='Anna Ravenscroft', guests=[], handle='AnnaRaven')
+    HackerClubMember(name='Anna Ravenscroft', guests=[], handle='raven')
 
 If ``handle`` is omitted, it's set to the first part of the member's name::
 
     >>> leo = HackerClubMember('Leo Rochael')
     >>> leo
     HackerClubMember(name='Leo Rochael', guests=[], handle='Leo')
 
-Members must have a unique handle. The following ``leo2`` will not be created,
+Handles must be unique. The following ``leo2`` will not be created,
 because its ``handle`` would be 'Leo', which was taken by ``leo``::
 
     >>> leo2 = HackerClubMember('Leo DaVinci')

code/05-data-classes/dataclass/resource.py

@@ -12,15 +12,13 @@
 # tag::DOCTEST[]
 
     >>> description = 'Improving the design of existing code'
-    >>> book = Resource('978-0-13-475759-9', 'Refactoring, 2nd Edition',
+    >>> book = Resource('978-0-13-475759-9',
+    ...     'Refactoring, 2nd Edition',
     ...     ['Martin Fowler', 'Kent Beck'], date(2018, 11, 19),
     ...     ResourceType.BOOK, description, 'EN',
     ...     ['computer programming', 'OOP'])
     >>> book  # doctest: +NORMALIZE_WHITESPACE
-    Resource(identifier='978-0-13-475759-9', title='Refactoring, 2nd Edition',
-    creators=['Martin Fowler', 'Kent Beck'], date=datetime.date(2018, 11, 19),
-    type=<ResourceType.BOOK: 1>, description='Improving the design of existing code',
-    language='EN', subjects=['computer programming', 'OOP'])
+    Resource(identifier='978-0-13-475759-9', title='Refactoring, 2nd Edition', creators=['Martin Fowler', 'Kent Beck'], date=datetime.date(2018, 11, 19), type=<ResourceType.BOOK: 1>, description='Improving the design of existing code', language='EN', subjects=['computer programming', 'OOP'])
 
 # end::DOCTEST[]
 """

code/05-data-classes/frenchdeck.doctest

@@ -35,16 +35,17 @@ Card(rank='Q', suit='hearts')
 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>
+>>> 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>
+>>> Card.overall_rank = spades_high                             # <3>
 >>> lowest_card = Card('2', 'clubs')
 >>> highest_card = Card('A', 'spades')
->>> lowest_card.overall_rank()                                        # <4>
+>>> lowest_card.overall_rank()                                  # <4>
 0
 >>> highest_card.overall_rank()
 51

code/08-def-type-hints/charindex.py

@@ -25,11 +25,14 @@ def tokenize(text: str) -> Iterator[str]:  # <1>
     for match in RE_WORD.finditer(text):
         yield match.group().upper()
 
-def name_index(start: int = 32, end: int = STOP_CODE) -> dict[str, set[str]]:
+def name_index(
+    start: int = 32, end: int = STOP_CODE
+) -> dict[str, set[str]]:
     index: dict[str, set[str]] = {}  # <2>
     for char in (chr(i) for i in range(start, end)):
         if name := unicodedata.name(char, ''):  # <3>
             for word in tokenize(name):
                 index.setdefault(word, set()).add(char)
     return index
+
 # end::CHARINDEX[]

images/flpy_0405.png

@@ -1,4 +1,4 @@
-line-length = 100
+line-length = 73
 [format]
 # Use single quotes for strings, like Python's repr()
 quote-style = "single"

images/flpy_0406.png

@@ -107,10 +107,11 @@ O <<example3-1>> mostra o uso de compreensões de `dict` para criar dois dicion
 ... ]
 >>> country_dial = {country: code for code, country in dial_codes}  # <2>
 >>> country_dial
-{'Bangladesh': 880, 'Brazil': 55, 'China': 86, 'India': 91, 'Indonesia': 62,
-'Japan': 81, 'Nigeria': 234, 'Pakistan': 92, 'Russia': 7, 'United States': 1}
->>> {code: country.upper()                                          # <3>
-...     for country, code in sorted(country_dial.items())
+{'Bangladesh': 880, 'Brazil': 55, 'China': 86, 'India': 91,
+ 'Indonesia': 62, 'Japan': 81, 'Nigeria': 234, 'Pakistan': 92,
+ 'Russia': 7, 'United States': 1}
+>>> {code: country.upper() for country, code                        # <3>
+...     in sorted(country_dial.items())
 ...     if code < 70}
 {55: 'BRAZIL', 62: 'INDONESIA', 7: 'RUSSIA', 1: 'UNITED STATES'}
 ----