Update dict type hints

Author: gjbex

source-code/typing/dict_correct.py

@@ -2,22 +2,22 @@
 
 import re
 import sys
-from typing import Dict
 
 
-def word_count(text: str) -> Dict[str, int]:
-    counts = dict() # type: Dict[str, int]
-    words = re.split(r'\W+', text)
+def word_count(text: str) -> dict[str, int]:
+    counts: dict[str, int] = dict()
+    words = re.split(r"\W+", text)
     for word in words:
         word = word.lower()
         if word not in counts:
             counts[word] = 0
         counts[word] += 1
     return counts
 
-if __name__ == '__main__':
-    text = ' '.join(sys.stdin.readlines())
+
+if __name__ == "__main__":
+    text = " ".join(sys.stdin.readlines())
     counts = word_count(text)
     for word, count in counts.items():
         if word:
-            print(f'{word}: {count}')
+            print(f"{word}: {count}")

source-code/typing/dict_incorrect_01.py

@@ -2,26 +2,26 @@
 
 import re
 import sys
-from typing import Dict
 
 
-def word_count(text: str) -> Dict[str, int]:
-    counts = dict() # type: Dict[str, int]
-    words = re.split(r'\W+', text)
+def word_count(text: str) -> dict[str, int]:
+    counts: dict[str, int] = dict()
+    words = re.split(r"\W+", text)
     nr_words = 0
     for word in words:
         word = word.lower()
         if word not in counts:
             counts[word] = 0
         counts[word] += 1
         nr_words += 1
-    nr_words -= counts.pop('')
+    nr_words -= counts.pop("")
     for word, count in counts.items():
         counts[word] /= nr_words
     return counts
 
-if __name__ == '__main__':
-    text = ' '.join(sys.stdin.readlines())
+
+if __name__ == "__main__":
+    text = " ".join(sys.stdin.readlines())
     counts = word_count(text)
     for word, count in counts.items():
-        print(f'{word}: {count}')
+        print(f"{word}: {count}")