ch06

2021-10-28 17:38:47 +05:30
parent ef37ce0c4e
commit b6eb3ef8a7
32 changed files with 1063 additions and 0 deletions
@@ -0,0 +1,28 @@
+# oop/operator.overloading.py
+class Weird:
+    def __init__(self, s):
+        self._s = s
+
+    def __len__(self):
+        return len(self._s)
+
+    def __bool__(self):
+        return '42' in self._s
+
+
+weird = Weird('Hello! I am 9 years old!')
+print(len(weird))  # 24
+print(bool(weird))  # False
+
+weird2 = Weird('Hello! I am 42 years old!')
+print(len(weird2))  # 25
+print(bool(weird2))  # True
+
+
+"""
+$ python operator.overloading.py
+24
+False
+25
+True
+"""