Static typing and closures

Author: stivenramireza

.gitignore

@@ -3,3 +3,6 @@
 
 # Virtual environments
 venv
+
+# Cache
+platzi/advanced/.mypy_cache

platzi/advanced/closures.py

@@ -0,0 +1,21 @@
+from timeit import repeat
+
+
+def make_repeater_of(n: int) -> object:
+    def repeater(word: str) -> object:
+        assert isinstance(word, str), "You must use a string"
+        return word * n
+
+    return repeater
+
+
+def main():
+    repeat_5 = make_repeater_of(5)
+    print(repeat_5("Hello"))
+
+    repeat_10 = make_repeater_of(10)
+    print(repeat_10("Platzi"))
+
+
+if __name__ == "__main__":
+    main()

platzi/advanced/palindrome.py

@@ -0,0 +1,12 @@
+def is_palindrome(word: str) -> bool:
+    replaced_word = word.replace(" ", "").lower()
+    return replaced_word == word[::-1]
+
+
+def main():
+    palindrome = is_palindrome(100)
+    print(palindrome)
+
+
+if __name__ == "__main__":
+    main()

platzi/oop/polymorphism.py

@@ -1,4 +1,5 @@
 class Person:
+
     def __init__(self, name: str) -> None:
         self.name = name
 
@@ -7,9 +8,10 @@ def advance(self) -> None:
 
 
 class Cyclist(Person):
+
     def __init__(self, name: str) -> None:
         super().__init__(name)
-
+    
     def advance(self) -> None:
         print("Riding on my bike...")