updade from Atlas repo

Author: ramalho

03-dict-set/dialcodes.py

@@ -17,7 +17,7 @@
 print('d1:', d1.keys())
 d2 = dict(sorted(DIAL_CODES))  # <2>
 print('d2:', d2.keys())
-d3 = dict(sorted(DIAL_CODES, key=lambda x:x[1]))  # <3>
+d3 = dict(sorted(DIAL_CODES, key=lambda x: x[1]))  # <3>
 print('d3:', d3.keys())
 assert d1 == d2 and d2 == d3  # <4>
 # end::DIALCODES[]

03-dict-set/index.py

@@ -5,8 +5,8 @@
 # tag::INDEX[]
 """Build an index mapping word -> list of occurrences"""
 
-import sys
 import re
+import sys
 
 WORD_RE = re.compile(r'\w+')
 
@@ -15,11 +15,11 @@
     for line_no, line in enumerate(fp, 1):
         for match in WORD_RE.finditer(line):
             word = match.group()
-            column_no = match.start()+1
+            column_no = match.start() + 1
             location = (line_no, column_no)
             index.setdefault(word, []).append(location)  # <1>
 
-# print in alphabetical order
+# display in alphabetical order
 for word in sorted(index, key=str.upper):
     print(word, index[word])
 # end::INDEX[]

03-dict-set/index0.py

@@ -5,8 +5,8 @@
 # tag::INDEX0[]
 """Build an index mapping word -> list of occurrences"""
 
-import sys
 import re
+import sys
 
 WORD_RE = re.compile(r'\w+')
 
@@ -22,7 +22,7 @@
             occurrences.append(location)       # <2>
             index[word] = occurrences          # <3>
 
-# print in alphabetical order
+# display in alphabetical order
 for word in sorted(index, key=str.upper):  # <4>
     print(word, index[word])
 # end::INDEX0[]

03-dict-set/index_default.py

@@ -5,9 +5,9 @@
 # tag::INDEX_DEFAULT[]
 """Build an index mapping word -> list of occurrences"""
 
-import sys
-import re
 import collections
+import re
+import sys
 
 WORD_RE = re.compile(r'\w+')
 
@@ -16,11 +16,11 @@
     for line_no, line in enumerate(fp, 1):
         for match in WORD_RE.finditer(line):
             word = match.group()
-            column_no = match.start()+1
+            column_no = match.start() + 1
             location = (line_no, column_no)
             index[word].append(location)  # <2>
 
-# print in alphabetical order
+# display in alphabetical order
 for word in sorted(index, key=str.upper):
     print(word, index[word])
 # end::INDEX_DEFAULT[]

04-text-byte/categories.py

@@ -1,6 +1,6 @@
 import sys
 import collections
-from unicodedata import name, category
+from unicodedata import category
 
 
 def category_stats():
@@ -19,7 +19,7 @@ def category_scan(desired):
     for code in range(sys.maxunicode + 1):
         char = chr(code)
         if category(char) == desired:
-            yield char    
+            yield char
 
 
 def main(args):
@@ -30,7 +30,7 @@ def main(args):
             count += 1
             if count > 200:
                 break
-        print() 
+        print()
         print(count, 'characters shown')
     else:
         counts, firsts = category_stats()

04-text-byte/default_encodings.py

@@ -1,4 +1,5 @@
-import sys, locale
+import locale
+import sys
 
 expressions = """
         locale.getpreferredencoding()

04-text-byte/zwj_sample.py

@@ -10,9 +10,9 @@
 1F469 200D 2764 FE0F 200D 1F48B 200D 1F469 |kiss: woman, woman  |E2.0
 """
 
-markers = {'\u200D': 'ZWG', # ZERO WIDTH JOINER
-           '\uFE0F': 'V16', # VARIATION SELECTOR-16
-          }
+markers = {'\u200D': 'ZWG',  # ZERO WIDTH JOINER
+           '\uFE0F': 'V16',  # VARIATION SELECTOR-16
+           }
 
 for line in zwg_sample.strip().split('\n'):
     code, descr, version = (s.strip() for s in line.split('|'))

05-record-like/dataclass/coordinates.py

@@ -13,12 +13,11 @@
 
 @dataclass(frozen=True)
 class Coordinate:
-	
     lat: float
     long: float
 
     def __str__(self):
         ns = 'N' if self.lat >= 0 else 'S'
         we = 'E' if self.long >= 0 else 'W'
         return f'{abs(self.lat):.1f}°{ns}, {abs(self.long):.1f}°{we}'
-# end::COORDINATE[]
+# end::COORDINATE[]

08-def-type-hints/colors.py

@@ -76,6 +76,5 @@ def demo():
     print(n, name2hex(n, o))
 
 
-
 if __name__ == '__main__':
     demo()

08-def-type-hints/columnize2.py

@@ -10,7 +10,6 @@ def columnize(sequence: Sequence[T], num_columns: int = 0) -> List[Tuple[T, ...]
     return [tuple(sequence[i::num_rows]) for i in range(num_rows)]
 
 
-
 def demo() -> None:
     nato = ('Alfa Bravo Charlie Delta Echo Foxtrot Golf Hotel India'
             ' Juliett Kilo Lima Mike November Oscar Papa Quebec Romeo'
@@ -22,7 +21,6 @@ def demo() -> None:
             print(f'{word:15}', end='')
         print()
 
-
     print()
     for length in range(2, 21, 6):
         values = list(range(1, length + 1))

08-def-type-hints/columnize_alias.py

@@ -10,7 +10,6 @@ def columnize(sequence: Sequence[str], num_columns: int) -> List[Row]:
     return [tuple(sequence[i::num_rows]) for i in range(num_rows)]
 
 
-
 def demo() -> None:
     nato = ('Alfa Bravo Charlie Delta Echo Foxtrot Golf Hotel India'
             ' Juliett Kilo Lima Mike November Oscar Papa Quebec Romeo'

08-def-type-hints/comparable/mymax_test.py

@@ -1,4 +1,4 @@
-from typing import List, Callable, TypeVar
+from typing import List, Callable
 
 import pytest  # type: ignore
 

08-def-type-hints/double/double_test.py

@@ -53,4 +53,4 @@ def test_double_nparray() -> None:
 def test_double_none() -> None:
     given = None
     with pytest.raises(TypeError):
-        result = double(given)
+        double(given)

08-def-type-hints/mode/mode_T.py

@@ -12,7 +12,7 @@ def mode(data: Iterable[T]) -> T:
 
 
 def demo() -> None:
-    from typing import List, Set, TYPE_CHECKING
+    from typing import TYPE_CHECKING
     pop: list[set] = [set(), set()]
     m = mode(pop)
     if TYPE_CHECKING:
@@ -21,5 +21,6 @@ def demo() -> None:
     print(pop)
     print(repr(m), type(m))
 
+
 if __name__ == '__main__':
     demo()

08-def-type-hints/passdrill.py

@@ -3,12 +3,11 @@
 """passdrill: typing drills for practicing passphrases
 """
 
-import sys
 import os
+import sys
+from base64 import b64encode, b64decode
 from getpass import getpass
 from hashlib import scrypt
-from base64 import b64encode, b64decode
-
 from typing import Sequence, Tuple
 
 HASH_FILENAME = 'passdrill.hash'
@@ -20,7 +19,7 @@ def prompt() -> str:
     confirmed = ''
     while confirmed != 'y':
         passphrase = input('Type passphrase to hash (it will be echoed): ')
-        if passphrase == '' or passphrase == 'q':
+        if passphrase in ('', 'q'):
             print('ERROR: the passphrase cannot be empty or "q".')
             continue
         print(f'Passphrase to be hashed -> {passphrase}')
@@ -45,7 +44,7 @@ def save_hash() -> None:
     salted_hash = build_hash(prompt())
     with open(HASH_FILENAME, 'wb') as fp:
         fp.write(salted_hash)
-    print(f'Passphrase hash saved to', HASH_FILENAME)
+    print(f'Passphrase hash saved to {HASH_FILENAME}')
 
 
 def load_hash() -> Tuple[bytes, bytes]:

08-def-type-hints/replacer2.py

@@ -20,7 +20,7 @@ class FromTo(NamedTuple):
     to: str
 
 
-def zip_replace(text: str, changes: Iterable[FromTo], count:int = -1) -> str:
+def zip_replace(text: str, changes: Iterable[FromTo], count: int = -1) -> str:
     for from_, to in changes:
         text = text.replace(from_, to, count)
     return text

08-def-type-hints/romans.py

@@ -1,6 +1,6 @@
 values_map = [
-    (1000,  900, 500,  400, 100,   90,  50,   40,  10,    9,   5,    4,  1),
-    ( 'M', 'CM', 'D', 'CD', 'C', 'XC', 'L', 'XL', 'X', 'IX', 'V', 'IV','I')
+    (1000,  900, 500,  400, 100,   90,  50,   40,  10,    9,   5,    4,   1),
+    ( 'M', 'CM', 'D', 'CD', 'C', 'XC', 'L', 'XL', 'X', 'IX', 'V', 'IV', 'I')
 ]
 
 def to_roman(arabic: int) -> str: